{"title":"Controllers \u0026 Interfaces","description":"\u003cp\u003eHarwil controllers, relays, and interface modules that turn flow and level signals into dependable equipment control.\u003c\/p\u003e","products":[{"product_id":"harwil-lc-1-controller","title":"Harwil LC-1 Liquid Level Controller, NEMA 4, 30 Amp DPST Motor Contactor","description":"\n\u003cstyle\u003e\n  .hlc1-wrap, .hlc1-wrap * { box-sizing: border-box; }\n  .hlc1-wrap {\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: #1a1a1a;\n    line-height: 1.55;\n  }\n\n  \/* Header *\/\n  .hlc1-header {\n    border-left: 5px solid #00a8e0;\n    padding: 4px 0 4px 16px;\n    margin-bottom: 20px;\n  }\n  .hlc1-header h2 {\n    margin: 0;\n    color: #003a70;\n    font-size: 1.55em;\n    font-weight: 700;\n    letter-spacing: -0.01em;\n  }\n  .hlc1-subtitle {\n    margin: 4px 0 0;\n    color: #666;\n    font-size: 0.95em;\n  }\n\n  \/* Intro *\/\n  .hlc1-intro {\n    margin: 0 0 24px;\n    color: #333;\n    font-size: 0.98em;\n  }\n\n  \/* Section heading *\/\n  .hlc1-section { margin-bottom: 28px; }\n  .hlc1-section-heading {\n    background: #003a70;\n    color: #fff;\n    font-size: 0.85em;\n    font-weight: 700;\n    letter-spacing: 0.08em;\n    text-transform: uppercase;\n    padding: 6px 12px;\n    margin: 0 0 0;\n    border-radius: 4px 4px 0 0;\n  }\n\n  \/* Spec table *\/\n  .hlc1-spec-table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 0.93em;\n    background: #fff;\n    border: 1px solid #d8dde6;\n    border-top: none;\n    border-radius: 0 0 4px 4px;\n    overflow: hidden;\n  }\n  .hlc1-spec-table tr { border-bottom: 1px solid #eef1f6; }\n  .hlc1-spec-table tr:nth-child(even) { background: #fafbfd; }\n  .hlc1-spec-table tr:last-child { border-bottom: none; }\n  .hlc1-spec-table th,\n  .hlc1-spec-table td {\n    text-align: left;\n    padding: 8px 14px;\n    vertical-align: top;\n  }\n  .hlc1-spec-table th {\n    font-weight: 600;\n    color: #4a4a4a;\n    width: 38%;\n  }\n  .hlc1-spec-table td {\n    color: #1a1a1a;\n    font-family: ui-monospace, \"SF Mono\", Menlo, Consolas, monospace;\n    font-size: 0.92em;\n  }\n\n  \/* Compatibility list *\/\n  .hlc1-compat-list {\n    margin: 0;\n    padding: 14px 16px 14px 32px;\n    background: #fff;\n    border: 1px solid #d8dde6;\n    border-top: none;\n    border-radius: 0 0 4px 4px;\n    list-style: square;\n    color: #1a1a1a;\n    font-size: 0.95em;\n  }\n  .hlc1-compat-list li { padding: 2px 0; }\n  .hlc1-compat-list li::marker { color: #00a8e0; }\n\n  \/* Cross-reference chip list *\/\n  .hlc1-chips {\n    padding: 14px;\n    background: #fff;\n    border: 1px solid #d8dde6;\n    border-top: none;\n    border-radius: 0 0 4px 4px;\n    display: flex;\n    flex-wrap: wrap;\n    gap: 8px;\n  }\n  .hlc1-chip {\n    background: #f0f3f8;\n    border: 1px solid #d8dde6;\n    color: #003a70;\n    padding: 5px 12px;\n    border-radius: 4px;\n    font-family: ui-monospace, \"SF Mono\", Menlo, Consolas, monospace;\n    font-size: 0.88em;\n    font-weight: 600;\n  }\n\n  \/* Notes \/ FAQ *\/\n  .hlc1-notes {\n    padding: 14px;\n    background: #fff;\n    border: 1px solid #d8dde6;\n    border-top: none;\n    border-radius: 0 0 4px 4px;\n  }\n  .hlc1-note-item { padding: 8px 0; border-bottom: 1px solid #eef1f6; }\n  .hlc1-note-item:last-child { border-bottom: none; }\n  .hlc1-note-q { font-weight: 600; color: #003a70; margin: 0 0 3px; font-size: 0.95em; }\n  .hlc1-note-a { margin: 0; color: #333; font-size: 0.93em; }\n\n  \/* Footer *\/\n  .hlc1-footer {\n    border-top: 1px solid #d8dde6;\n    padding-top: 12px;\n    margin-top: 24px;\n    text-align: center;\n    color: #555;\n    font-size: 0.88em;\n  }\n  .hlc1-footer .hlc1-dot {\n    color: #00a8e0;\n    margin: 0 8px;\n    font-weight: 700;\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"hlc1-wrap\"\u003e\n\n  \u003cheader class=\"hlc1-header\"\u003e\n    \u003ch2\u003eHarwil LC-1 Liquid Level Controller\u003c\/h2\u003e\n    \u003cp class=\"hlc1-subtitle\"\u003eFill it or empty it, automatically.\u003c\/p\u003e\n  \u003c\/header\u003e\n\n  \u003cp class=\"hlc1-intro\"\u003eThe \u003cstrong\u003eHarwil LC-1\u003c\/strong\u003e pairs any two Harwil liquid level switches with an electronic control module in a weather resistant box to automatically fill or empty a tank or vessel. The module design eliminates false starts caused by turbulent wave action.\u003c\/p\u003e\n\n  \n    \n    \u003csection class=\"hlc1-section\"\u003e\n      \u003cdiv class=\"hlc1-section-heading\"\u003eEnclosure\u003c\/div\u003e\n      \u003ctable class=\"hlc1-spec-table\"\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n\u003cth\u003eRating\u003c\/th\u003e\n\u003ctd\u003eNEMA 4 weather resistant\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eConduit Fittings\u003c\/th\u003e\n\u003ctd\u003eTwo standard 1\/2 inch seal tight flexible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTerminal Strip\u003c\/th\u003e\n\u003ctd\u003eColor coded with ring, labeled\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/section\u003e\n    \n    \u003csection class=\"hlc1-section\"\u003e\n      \u003cdiv class=\"hlc1-section-heading\"\u003eElectrical\u003c\/div\u003e\n      \u003ctable class=\"hlc1-spec-table\"\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n\u003cth\u003eInput Power\u003c\/th\u003e\n\u003ctd\u003e120 or 240 VAC 50\/60 Hz models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMotor Contactor Output\u003c\/th\u003e\n\u003ctd\u003e30 amp DPST\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePump Capacity\u003c\/th\u003e\n\u003ctd\u003e1 1\/2 hp at 120 VAC, 3 hp at 240 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSecondary Output\u003c\/th\u003e\n\u003ctd\u003e10 amp SPDT relay\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eControl Module\u003c\/th\u003e\n\u003ctd\u003eElectronic latching \/ unlatching\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/section\u003e\n    \n    \u003csection class=\"hlc1-section\"\u003e\n      \u003cdiv class=\"hlc1-section-heading\"\u003eSystem\u003c\/div\u003e\n      \u003ctable class=\"hlc1-spec-table\"\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n\u003cth\u003eLevel Switches\u003c\/th\u003e\n\u003ctd\u003eAny two Harwil liquid level switch models\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFluids\u003c\/th\u003e\n\u003ctd\u003eClean or contaminated, including water, sea water, sewage\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/section\u003e\n    \n  \n\n  \n  \u003csection class=\"hlc1-section\"\u003e\n    \u003cdiv class=\"hlc1-section-heading\"\u003eCompatibility\u003c\/div\u003e\n    \u003cul class=\"hlc1-compat-list\"\u003e\n      \u003cli\u003eAutomatic tank fill systems\u003c\/li\u003e\n\u003cli\u003eAutomatic tank empty systems\u003c\/li\u003e\n\u003cli\u003eClean or contaminated fluids\u003c\/li\u003e\n\u003cli\u003eWater, sea water, sewage, thin slurries\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/section\u003e\n  \n\n  \n  \u003csection class=\"hlc1-section\"\u003e\n    \u003cdiv class=\"hlc1-section-heading\"\u003eCross-References\u003c\/div\u003e\n    \u003cdiv class=\"hlc1-chips\"\u003e\n      \u003cspan class=\"hlc1-chip\"\u003eLC-1\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n  \n\n  \n  \u003csection class=\"hlc1-section\"\u003e\n    \u003cdiv class=\"hlc1-section-heading\"\u003eNotes\u003c\/div\u003e\n    \u003cdiv class=\"hlc1-notes\"\u003e\n      \n      \u003cdiv class=\"hlc1-note-item\"\u003e\n        \u003cp class=\"hlc1-note-q\"\u003eDoes it include the level switches?\u003c\/p\u003e\n        \u003cp class=\"hlc1-note-a\"\u003eThe LC-1 is designed around any two Harwil liquid level switch models, which are selected to match your fluid and mounting.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \n    \u003c\/div\u003e\n  \u003c\/section\u003e\n  \n\n  \u003cfooter class=\"hlc1-footer\"\u003e\n    Genuine Harwil\u003cspan class=\"hlc1-dot\"\u003e•\u003c\/span\u003eFactory Specifications\u003cspan class=\"hlc1-dot\"\u003e•\u003c\/span\u003eFast Shipping\u003cspan class=\"hlc1-dot\"\u003e•\u003c\/span\u003eExpert Support\n  \u003c\/footer\u003e\n\n\u003c\/div\u003e\n","brand":"Harwil Corporation","offers":[{"title":"Default Title","offer_id":55882734141762,"sku":"PFS-LC-1","price":425.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1022\/1040\/4674\/files\/LC1B.1_cedb5861-9d8a-4f44-acaa-605b7d3f3ca9.png?v=1786333944"},{"product_id":"harwil-sdc-101-controller","title":"Harwil SDC-101 Flow Loss Shut Down Controller","description":"\n\u003cstyle\u003e\n  .hsdc-wrap, .hsdc-wrap * { box-sizing: border-box; }\n  .hsdc-wrap {\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: #1a1a1a;\n    line-height: 1.55;\n  }\n\n  \/* Header *\/\n  .hsdc-header {\n    border-left: 5px solid #00a8e0;\n    padding: 4px 0 4px 16px;\n    margin-bottom: 20px;\n  }\n  .hsdc-header h2 {\n    margin: 0;\n    color: #003a70;\n    font-size: 1.55em;\n    font-weight: 700;\n    letter-spacing: -0.01em;\n  }\n  .hsdc-subtitle {\n    margin: 4px 0 0;\n    color: #666;\n    font-size: 0.95em;\n  }\n\n  \/* Intro *\/\n  .hsdc-intro {\n    margin: 0 0 24px;\n    color: #333;\n    font-size: 0.98em;\n  }\n\n  \/* Section heading *\/\n  .hsdc-section { margin-bottom: 28px; }\n  .hsdc-section-heading {\n    background: #003a70;\n    color: #fff;\n    font-size: 0.85em;\n    font-weight: 700;\n    letter-spacing: 0.08em;\n    text-transform: uppercase;\n    padding: 6px 12px;\n    margin: 0 0 0;\n    border-radius: 4px 4px 0 0;\n  }\n\n  \/* Spec table *\/\n  .hsdc-spec-table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 0.93em;\n    background: #fff;\n    border: 1px solid #d8dde6;\n    border-top: none;\n    border-radius: 0 0 4px 4px;\n    overflow: hidden;\n  }\n  .hsdc-spec-table tr { border-bottom: 1px solid #eef1f6; }\n  .hsdc-spec-table tr:nth-child(even) { background: #fafbfd; }\n  .hsdc-spec-table tr:last-child { border-bottom: none; }\n  .hsdc-spec-table th,\n  .hsdc-spec-table td {\n    text-align: left;\n    padding: 8px 14px;\n    vertical-align: top;\n  }\n  .hsdc-spec-table th {\n    font-weight: 600;\n    color: #4a4a4a;\n    width: 38%;\n  }\n  .hsdc-spec-table td {\n    color: #1a1a1a;\n    font-family: ui-monospace, \"SF Mono\", Menlo, Consolas, monospace;\n    font-size: 0.92em;\n  }\n\n  \/* Compatibility list *\/\n  .hsdc-compat-list {\n    margin: 0;\n    padding: 14px 16px 14px 32px;\n    background: #fff;\n    border: 1px solid #d8dde6;\n    border-top: none;\n    border-radius: 0 0 4px 4px;\n    list-style: square;\n    color: #1a1a1a;\n    font-size: 0.95em;\n  }\n  .hsdc-compat-list li { padding: 2px 0; }\n  .hsdc-compat-list li::marker { color: #00a8e0; }\n\n  \/* Cross-reference chip list *\/\n  .hsdc-chips {\n    padding: 14px;\n    background: #fff;\n    border: 1px solid #d8dde6;\n    border-top: none;\n    border-radius: 0 0 4px 4px;\n    display: flex;\n    flex-wrap: wrap;\n    gap: 8px;\n  }\n  .hsdc-chip {\n    background: #f0f3f8;\n    border: 1px solid #d8dde6;\n    color: #003a70;\n    padding: 5px 12px;\n    border-radius: 4px;\n    font-family: ui-monospace, \"SF Mono\", Menlo, Consolas, monospace;\n    font-size: 0.88em;\n    font-weight: 600;\n  }\n\n  \/* Notes \/ FAQ *\/\n  .hsdc-notes {\n    padding: 14px;\n    background: #fff;\n    border: 1px solid #d8dde6;\n    border-top: none;\n    border-radius: 0 0 4px 4px;\n  }\n  .hsdc-note-item { padding: 8px 0; border-bottom: 1px solid #eef1f6; }\n  .hsdc-note-item:last-child { border-bottom: none; }\n  .hsdc-note-q { font-weight: 600; color: #003a70; margin: 0 0 3px; font-size: 0.95em; }\n  .hsdc-note-a { margin: 0; color: #333; font-size: 0.93em; }\n\n  \/* Footer *\/\n  .hsdc-footer {\n    border-top: 1px solid #d8dde6;\n    padding-top: 12px;\n    margin-top: 24px;\n    text-align: center;\n    color: #555;\n    font-size: 0.88em;\n  }\n  .hsdc-footer .hsdc-dot {\n    color: #00a8e0;\n    margin: 0 8px;\n    font-weight: 700;\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"hsdc-wrap\"\u003e\n\n  \u003cheader class=\"hsdc-header\"\u003e\n    \u003ch2\u003eHarwil SDC-101 Shut Down Controller\u003c\/h2\u003e\n    \u003cp class=\"hsdc-subtitle\"\u003eNo flow, no power.\u003c\/p\u003e\n  \u003c\/header\u003e\n\n  \u003cp class=\"hsdc-intro\"\u003eThe \u003cstrong\u003eHarwil SDC-101\u003c\/strong\u003e installs in the input power line of pumps, heaters and valves that are flow critical, and interrupts power automatically on loss of flow. Power stays off until the problem is corrected and proper flow is re-established.\u003c\/p\u003e\n\n  \n    \n    \u003csection class=\"hsdc-section\"\u003e\n      \u003cdiv class=\"hsdc-section-heading\"\u003eFunction\u003c\/div\u003e\n      \u003ctable class=\"hsdc-spec-table\"\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n\u003cth\u003ePurpose\u003c\/th\u003e\n\u003ctd\u003eShut down control on loss of flow\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eInstalled In\u003c\/th\u003e\n\u003ctd\u003eInput power line of pumps, heaters, valves\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOn Flow Loss\u003c\/th\u003e\n\u003ctd\u003eInterrupts power automatically\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRestart\u003c\/th\u003e\n\u003ctd\u003ePower remains off until proper flow is re-established\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/section\u003e\n    \n    \u003csection class=\"hsdc-section\"\u003e\n      \u003cdiv class=\"hsdc-section-heading\"\u003eProblems Addressed\u003c\/div\u003e\n      \u003ctable class=\"hsdc-spec-table\"\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n\u003cth\u003eStart Up\u003c\/th\u003e\n\u003ctd\u003eFailure to establish programmed flow after pump turn on\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eRunning\u003c\/th\u003e\n\u003ctd\u003eLoss of flow from line clogging, line rupture or incorrect valve position\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePriming\u003c\/th\u003e\n\u003ctd\u003eAddresses loss of pump prime, where a flow switch alone cannot start the pump\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/section\u003e\n    \n  \n\n  \n  \u003csection class=\"hsdc-section\"\u003e\n    \u003cdiv class=\"hsdc-section-heading\"\u003eCompatibility\u003c\/div\u003e\n    \u003cul class=\"hsdc-compat-list\"\u003e\n      \u003cli\u003eFlow critical pumps\u003c\/li\u003e\n\u003cli\u003eFlow critical heaters\u003c\/li\u003e\n\u003cli\u003eFlow critical valves\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/section\u003e\n  \n\n  \n  \u003csection class=\"hsdc-section\"\u003e\n    \u003cdiv class=\"hsdc-section-heading\"\u003eCross-References\u003c\/div\u003e\n    \u003cdiv class=\"hsdc-chips\"\u003e\n      \u003cspan class=\"hsdc-chip\"\u003eSDC-101\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n  \n\n  \n  \u003csection class=\"hsdc-section\"\u003e\n    \u003cdiv class=\"hsdc-section-heading\"\u003eNotes\u003c\/div\u003e\n    \u003cdiv class=\"hsdc-notes\"\u003e\n      \n      \u003cdiv class=\"hsdc-note-item\"\u003e\n        \u003cp class=\"hsdc-note-q\"\u003eWhy not just use a flow switch on the pump output?\u003c\/p\u003e\n        \u003cp class=\"hsdc-note-a\"\u003eA flow switch alone creates a catch 22 at start up, because there is no flow yet to close the switch and energize the pump. The SDC-101 is designed to handle that start up case.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \n    \u003c\/div\u003e\n  \u003c\/section\u003e\n  \n\n  \u003cfooter class=\"hsdc-footer\"\u003e\n    Genuine Harwil\u003cspan class=\"hsdc-dot\"\u003e•\u003c\/span\u003eFactory Specifications\u003cspan class=\"hsdc-dot\"\u003e•\u003c\/span\u003eFast Shipping\u003cspan class=\"hsdc-dot\"\u003e•\u003c\/span\u003eExpert Support\n  \u003c\/footer\u003e\n\n\u003c\/div\u003e\n","brand":"Harwil Corporation","offers":[{"title":"Default Title","offer_id":55882734174530,"sku":"PFS-SDC-101","price":422.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1022\/1040\/4674\/files\/SDC101.1_f4b5cd27-127e-4ffa-b250-7632d6a7c966.png?v=1786333955"},{"product_id":"harwil-s-27-relay-controller","title":"Harwil S-27 Intrinsically Safe Solid State Hazardous Area Relay","description":"\n\u003cstyle\u003e\n  .hs27-wrap, .hs27-wrap * { box-sizing: border-box; }\n  .hs27-wrap {\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: #1a1a1a;\n    line-height: 1.55;\n  }\n\n  \/* Header *\/\n  .hs27-header {\n    border-left: 5px solid #00a8e0;\n    padding: 4px 0 4px 16px;\n    margin-bottom: 20px;\n  }\n  .hs27-header h2 {\n    margin: 0;\n    color: #003a70;\n    font-size: 1.55em;\n    font-weight: 700;\n    letter-spacing: -0.01em;\n  }\n  .hs27-subtitle {\n    margin: 4px 0 0;\n    color: #666;\n    font-size: 0.95em;\n  }\n\n  \/* Intro *\/\n  .hs27-intro {\n    margin: 0 0 24px;\n    color: #333;\n    font-size: 0.98em;\n  }\n\n  \/* Section heading *\/\n  .hs27-section { margin-bottom: 28px; }\n  .hs27-section-heading {\n    background: #003a70;\n    color: #fff;\n    font-size: 0.85em;\n    font-weight: 700;\n    letter-spacing: 0.08em;\n    text-transform: uppercase;\n    padding: 6px 12px;\n    margin: 0 0 0;\n    border-radius: 4px 4px 0 0;\n  }\n\n  \/* Spec table *\/\n  .hs27-spec-table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 0.93em;\n    background: #fff;\n    border: 1px solid #d8dde6;\n    border-top: none;\n    border-radius: 0 0 4px 4px;\n    overflow: hidden;\n  }\n  .hs27-spec-table tr { border-bottom: 1px solid #eef1f6; }\n  .hs27-spec-table tr:nth-child(even) { background: #fafbfd; }\n  .hs27-spec-table tr:last-child { border-bottom: none; }\n  .hs27-spec-table th,\n  .hs27-spec-table td {\n    text-align: left;\n    padding: 8px 14px;\n    vertical-align: top;\n  }\n  .hs27-spec-table th {\n    font-weight: 600;\n    color: #4a4a4a;\n    width: 38%;\n  }\n  .hs27-spec-table td {\n    color: #1a1a1a;\n    font-family: ui-monospace, \"SF Mono\", Menlo, Consolas, monospace;\n    font-size: 0.92em;\n  }\n\n  \/* Compatibility list *\/\n  .hs27-compat-list {\n    margin: 0;\n    padding: 14px 16px 14px 32px;\n    background: #fff;\n    border: 1px solid #d8dde6;\n    border-top: none;\n    border-radius: 0 0 4px 4px;\n    list-style: square;\n    color: #1a1a1a;\n    font-size: 0.95em;\n  }\n  .hs27-compat-list li { padding: 2px 0; }\n  .hs27-compat-list li::marker { color: #00a8e0; }\n\n  \/* Cross-reference chip list *\/\n  .hs27-chips {\n    padding: 14px;\n    background: #fff;\n    border: 1px solid #d8dde6;\n    border-top: none;\n    border-radius: 0 0 4px 4px;\n    display: flex;\n    flex-wrap: wrap;\n    gap: 8px;\n  }\n  .hs27-chip {\n    background: #f0f3f8;\n    border: 1px solid #d8dde6;\n    color: #003a70;\n    padding: 5px 12px;\n    border-radius: 4px;\n    font-family: ui-monospace, \"SF Mono\", Menlo, Consolas, monospace;\n    font-size: 0.88em;\n    font-weight: 600;\n  }\n\n  \/* Notes \/ FAQ *\/\n  .hs27-notes {\n    padding: 14px;\n    background: #fff;\n    border: 1px solid #d8dde6;\n    border-top: none;\n    border-radius: 0 0 4px 4px;\n  }\n  .hs27-note-item { padding: 8px 0; border-bottom: 1px solid #eef1f6; }\n  .hs27-note-item:last-child { border-bottom: none; }\n  .hs27-note-q { font-weight: 600; color: #003a70; margin: 0 0 3px; font-size: 0.95em; }\n  .hs27-note-a { margin: 0; color: #333; font-size: 0.93em; }\n\n  \/* Footer *\/\n  .hs27-footer {\n    border-top: 1px solid #d8dde6;\n    padding-top: 12px;\n    margin-top: 24px;\n    text-align: center;\n    color: #555;\n    font-size: 0.88em;\n  }\n  .hs27-footer .hs27-dot {\n    color: #00a8e0;\n    margin: 0 8px;\n    font-weight: 700;\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"hs27-wrap\"\u003e\n\n  \u003cheader class=\"hs27-header\"\u003e\n    \u003ch2\u003eHarwil Series 27 Intrinsically Safe Relay\u003c\/h2\u003e\n    \u003cp class=\"hs27-subtitle\"\u003eStandard switches, hazardous areas.\u003c\/p\u003e\n  \u003c\/header\u003e\n\n  \u003cp class=\"hs27-intro\"\u003eThe \u003cstrong\u003eHarwil Series 27\u003c\/strong\u003e is an intrinsically safe solid state hazardous area relay that allows standard, off the shelf switches to be used in hazardous areas. Solid state technology replaces expensive explosion proof enclosures.\u003c\/p\u003e\n\n  \n    \n    \u003csection class=\"hs27-section\"\u003e\n      \u003cdiv class=\"hs27-section-heading\"\u003eFunction\u003c\/div\u003e\n      \u003ctable class=\"hs27-spec-table\"\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eIntrinsically safe solid state hazardous area relay\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePurpose\u003c\/th\u003e\n\u003ctd\u003eAllows use of standard off the shelf switches in hazardous areas\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTechnology\u003c\/th\u003e\n\u003ctd\u003eSolid state, eliminates explosion proof enclosures\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/section\u003e\n    \n    \u003csection class=\"hs27-section\"\u003e\n      \u003cdiv class=\"hs27-section-heading\"\u003eElectrical\u003c\/div\u003e\n      \u003ctable class=\"hs27-spec-table\"\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n\u003cth\u003eInput Power Options\u003c\/th\u003e\n\u003ctd\u003e115\/120 VAC 50\/60 Hz, 220\/240 VAC 50\/60 Hz, 24 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/section\u003e\n    \n    \u003csection class=\"hs27-section\"\u003e\n      \u003cdiv class=\"hs27-section-heading\"\u003eBenefits\u003c\/div\u003e\n      \u003ctable class=\"hs27-spec-table\"\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n\u003cth\u003eInstallation\u003c\/th\u003e\n\u003ctd\u003eFast, simple and inexpensive versus explosion proof housings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eReliability\u003c\/th\u003e\n\u003ctd\u003eIncreased by eliminating sealed joints and special housings\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/section\u003e\n    \n  \n\n  \n  \u003csection class=\"hs27-section\"\u003e\n    \u003cdiv class=\"hs27-section-heading\"\u003eCompatibility\u003c\/div\u003e\n    \u003cul class=\"hs27-compat-list\"\u003e\n      \u003cli\u003eHazardous location installations\u003c\/li\u003e\n\u003cli\u003eHarwil Q-1 and Q-4E flow switches\u003c\/li\u003e\n\u003cli\u003eStandard off the shelf switches\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/section\u003e\n  \n\n  \n  \u003csection class=\"hs27-section\"\u003e\n    \u003cdiv class=\"hs27-section-heading\"\u003eCross-References\u003c\/div\u003e\n    \u003cdiv class=\"hs27-chips\"\u003e\n      \u003cspan class=\"hs27-chip\"\u003eS27\/A\/1\/D\/0\u003c\/span\u003e\u003cspan class=\"hs27-chip\"\u003eS27\/A\/2\/D\/0\u003c\/span\u003e\u003cspan class=\"hs27-chip\"\u003eS17\/A\/3\/C\/0\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n  \n\n  \n  \u003csection class=\"hs27-section\"\u003e\n    \u003cdiv class=\"hs27-section-heading\"\u003eNotes\u003c\/div\u003e\n    \u003cdiv class=\"hs27-notes\"\u003e\n      \n      \u003cdiv class=\"hs27-note-item\"\u003e\n        \u003cp class=\"hs27-note-q\"\u003eWhat does intrinsically safe mean?\u003c\/p\u003e\n        \u003cp class=\"hs27-note-a\"\u003eIntrinsically safe equipment and wiring is incapable of releasing enough thermoelectric energy to ignite a hazardous atmospheric mixture of gases, vapors or dusts.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \n    \u003c\/div\u003e\n  \u003c\/section\u003e\n  \n\n  \u003cfooter class=\"hs27-footer\"\u003e\n    Genuine Harwil\u003cspan class=\"hs27-dot\"\u003e•\u003c\/span\u003eFactory Specifications\u003cspan class=\"hs27-dot\"\u003e•\u003c\/span\u003eFast Shipping\u003cspan class=\"hs27-dot\"\u003e•\u003c\/span\u003eExpert Support\n  \u003c\/footer\u003e\n\n\u003c\/div\u003e\n","brand":"Harwil Corporation","offers":[{"title":"220\/240 VAC 50\/60 HZ Input Power","offer_id":55882735878466,"sku":"PFS-S27\/A\/2\/D\/0","price":265.7,"currency_code":"USD","in_stock":true},{"title":"115\/120 VAC 50\/60 HZ Input Power","offer_id":55882735911234,"sku":"PFS-S27\/A\/1\/D\/0","price":260.7,"currency_code":"USD","in_stock":true},{"title":"24 VAC Input Power","offer_id":55882735944002,"sku":"PFS-S17\/A\/3\/C\/0","price":330.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1022\/1040\/4674\/files\/S27_5653e357-ceee-443e-9d23-57571822fc1d.png?v=1786333967"},{"product_id":"harwil-cf-112n-chemical-feed-pump-interface-module-noryl","title":"Harwil CF-112N Chemical Feed Pump Interface Module, Noryl","description":"\n\u003cstyle\u003e\n  .hcf112n-wrap, .hcf112n-wrap * { box-sizing: border-box; }\n  .hcf112n-wrap {\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: #1a1a1a;\n    line-height: 1.55;\n  }\n\n  \/* Header *\/\n  .hcf112n-header {\n    border-left: 5px solid #0066cc;\n    padding: 4px 0 4px 16px;\n    margin-bottom: 20px;\n  }\n  .hcf112n-header h2 {\n    margin: 0;\n    color: #0066cc;\n    font-size: 1.55em;\n    font-weight: 700;\n    letter-spacing: -0.01em;\n  }\n  .hcf112n-subtitle {\n    margin: 4px 0 0;\n    color: #666;\n    font-size: 0.95em;\n  }\n\n  \/* Intro *\/\n  .hcf112n-intro {\n    margin: 0 0 24px;\n    color: #333;\n    font-size: 0.98em;\n  }\n\n  \/* Section heading *\/\n  .hcf112n-section { margin-bottom: 28px; }\n  .hcf112n-section-heading {\n    background: #0066cc;\n    color: #fff;\n    font-size: 0.85em;\n    font-weight: 700;\n    letter-spacing: 0.08em;\n    text-transform: uppercase;\n    padding: 6px 12px;\n    margin: 0 0 0;\n    border-radius: 4px 4px 0 0;\n  }\n\n  \/* Spec table *\/\n  .hcf112n-spec-table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 0.93em;\n    background: #fff;\n    border: 1px solid #d8dde6;\n    border-top: none;\n    border-radius: 0 0 4px 4px;\n    overflow: hidden;\n  }\n  .hcf112n-spec-table tr { border-bottom: 1px solid #eef1f6; }\n  .hcf112n-spec-table tr:nth-child(even) { background: #fafbfd; }\n  .hcf112n-spec-table tr:last-child { border-bottom: none; }\n  .hcf112n-spec-table th,\n  .hcf112n-spec-table td {\n    text-align: left;\n    padding: 8px 14px;\n    vertical-align: top;\n  }\n  .hcf112n-spec-table th {\n    font-weight: 600;\n    color: #4a4a4a;\n    width: 38%;\n  }\n  .hcf112n-spec-table td {\n    color: #1a1a1a;\n    font-family: ui-monospace, \"SF Mono\", Menlo, Consolas, monospace;\n    font-size: 0.92em;\n  }\n\n  \/* Compatibility list *\/\n  .hcf112n-compat-list {\n    margin: 0;\n    padding: 14px 16px 14px 32px;\n    background: #fff;\n    border: 1px solid #d8dde6;\n    border-top: none;\n    border-radius: 0 0 4px 4px;\n    list-style: square;\n    color: #1a1a1a;\n    font-size: 0.95em;\n  }\n  .hcf112n-compat-list li { padding: 2px 0; }\n  .hcf112n-compat-list li::marker { color: #0066cc; }\n\n  \/* Cross-reference chip list *\/\n  .hcf112n-chips {\n    padding: 14px;\n    background: #fff;\n    border: 1px solid #d8dde6;\n    border-top: none;\n    border-radius: 0 0 4px 4px;\n    display: flex;\n    flex-wrap: wrap;\n    gap: 8px;\n  }\n  .hcf112n-chip {\n    background: #f0f3f8;\n    border: 1px solid #d8dde6;\n    color: #0066cc;\n    padding: 5px 12px;\n    border-radius: 4px;\n    font-family: ui-monospace, \"SF Mono\", Menlo, Consolas, monospace;\n    font-size: 0.88em;\n    font-weight: 600;\n  }\n\n  \/* Notes \/ FAQ *\/\n  .hcf112n-notes {\n    padding: 14px;\n    background: #fff;\n    border: 1px solid #d8dde6;\n    border-top: none;\n    border-radius: 0 0 4px 4px;\n  }\n  .hcf112n-note-item { padding: 8px 0; border-bottom: 1px solid #eef1f6; }\n  .hcf112n-note-item:last-child { border-bottom: none; }\n  .hcf112n-note-q { font-weight: 600; color: #0066cc; margin: 0 0 3px; font-size: 0.95em; }\n  .hcf112n-note-a { margin: 0; color: #333; font-size: 0.93em; }\n\n  \/* Footer *\/\n  .hcf112n-footer {\n    border-top: 1px solid #d8dde6;\n    padding-top: 12px;\n    margin-top: 24px;\n    text-align: center;\n    color: #555;\n    font-size: 0.88em;\n  }\n  .hcf112n-footer .hcf112n-dot {\n    color: #0066cc;\n    margin: 0 8px;\n    font-weight: 700;\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"hcf112n-wrap\"\u003e\n\n  \u003cheader class=\"hcf112n-header\"\u003e\n    \u003ch2\u003eHarwil CF-112N Chemical Feed Pump Interface Module\u003c\/h2\u003e\n    \u003cp class=\"hcf112n-subtitle\"\u003eChemical flows when water flows.\u003c\/p\u003e\n  \u003c\/header\u003e\n\n  \u003cp class=\"hcf112n-intro\"\u003eThe \u003cstrong\u003eHarwil CF-112N\u003c\/strong\u003e is a stand alone interface module in Noryl that automatically actuates a chemical feed pump when the primary bulk fluid begins to flow. It works in isolated stand alone systems or as part of a larger system.\u003c\/p\u003e\n\n  \n    \n    \u003csection class=\"hcf112n-section\"\u003e\n      \u003cdiv class=\"hcf112n-section-heading\"\u003eFunction\u003c\/div\u003e\n      \u003ctable class=\"hcf112n-spec-table\"\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eChemical feed pump interface module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAction\u003c\/th\u003e\n\u003ctd\u003eActuates chemical feed pump when primary bulk fluid begins to flow\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUse\u003c\/th\u003e\n\u003ctd\u003eStand alone or as part of a larger system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFlow Switch\u003c\/th\u003e\n\u003ctd\u003eUses Harwil Q-12 flow switch\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/section\u003e\n    \n    \u003csection class=\"hcf112n-section\"\u003e\n      \u003cdiv class=\"hcf112n-section-heading\"\u003eMaterials and Fitting\u003c\/div\u003e\n      \u003ctable class=\"hcf112n-spec-table\"\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n\u003cth\u003eBody Material\u003c\/th\u003e\n\u003ctd\u003eNoryl\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eIncluded\u003c\/th\u003e\n\u003ctd\u003ePVC tee\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePipe Sizes\u003c\/th\u003e\n\u003ctd\u003e3\/4 inch, 1 inch, 1 1\/2 inch, 2 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/section\u003e\n    \n    \u003csection class=\"hcf112n-section\"\u003e\n      \u003cdiv class=\"hcf112n-section-heading\"\u003eElectrical\u003c\/div\u003e\n      \u003ctable class=\"hcf112n-spec-table\"\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n\u003cth\u003eInput Power\u003c\/th\u003e\n\u003ctd\u003e120 VAC or 240 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput\u003c\/th\u003e\n\u003ctd\u003e10A, 120 VAC \/ SPNO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eElectrical Connection\u003c\/th\u003e\n\u003ctd\u003eOptions A, B, C, D\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/section\u003e\n    \n  \n\n  \n  \u003csection class=\"hcf112n-section\"\u003e\n    \u003cdiv class=\"hcf112n-section-heading\"\u003eCompatibility\u003c\/div\u003e\n    \u003cul class=\"hcf112n-compat-list\"\u003e\n      \u003cli\u003eMetering chlorine to well water for homes, ranches, farms, mines\u003c\/li\u003e\n\u003cli\u003eChlorinating animal drinking water systems\u003c\/li\u003e\n\u003cli\u003eBactericides for cooling tower makeup water plus pH \/ ORP control\u003c\/li\u003e\n\u003cli\u003eBoiler treatment additives and metal plating makeup solutions\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/section\u003e\n  \n\n  \n  \u003csection class=\"hcf112n-section\"\u003e\n    \u003cdiv class=\"hcf112n-section-heading\"\u003eCross-References\u003c\/div\u003e\n    \u003cdiv class=\"hcf112n-chips\"\u003e\n      \u003cspan class=\"hcf112n-chip\"\u003eCF-112N\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n  \n\n  \n  \u003csection class=\"hcf112n-section\"\u003e\n    \u003cdiv class=\"hcf112n-section-heading\"\u003eNotes\u003c\/div\u003e\n    \u003cdiv class=\"hcf112n-notes\"\u003e\n      \n      \u003cdiv class=\"hcf112n-note-item\"\u003e\n        \u003cp class=\"hcf112n-note-q\"\u003eWhat is the difference between CF-112N and CF-112VCR?\u003c\/p\u003e\n        \u003cp class=\"hcf112n-note-a\"\u003e\u003cstrong\u003eCF-112N\u003c\/strong\u003e is Noryl. \u003cstrong\u003eCF-112VCR\u003c\/strong\u003e is Fortron. Choose based on the chemical compatibility your application requires.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \n    \u003c\/div\u003e\n  \u003c\/section\u003e\n  \n\n  \u003cfooter class=\"hcf112n-footer\"\u003e\n    Genuine Harwil\u003cspan class=\"hcf112n-dot\"\u003e•\u003c\/span\u003eFactory Specifications\u003cspan class=\"hcf112n-dot\"\u003e•\u003c\/span\u003eFast Shipping\u003cspan class=\"hcf112n-dot\"\u003e•\u003c\/span\u003eExpert Support\n  \u003c\/footer\u003e\n\n\u003c\/div\u003e\n","brand":"Harwil Corporation","offers":[{"title":"4\" \/ 19.6 ON \/ 17.6 OFF \/ D","offer_id":55882736042306,"sku":"PFS-CF-112N\/7\/D","price":210.38,"currency_code":"USD","in_stock":true},{"title":"4\" \/ 19.6 ON \/ 17.6 OFF \/ C","offer_id":55882736075074,"sku":"PFS-CF-112N\/7\/C","price":210.38,"currency_code":"USD","in_stock":true},{"title":"4\" \/ 19.6 ON \/ 17.6 OFF \/ B","offer_id":55882736107842,"sku":"PFS-CF-112N\/7\/B","price":210.38,"currency_code":"USD","in_stock":true},{"title":"4\" \/ 19.6 ON \/ 17.6 OFF \/ A","offer_id":55882736140610,"sku":"PFS-CF-112N\/7\/A","price":210.38,"currency_code":"USD","in_stock":true},{"title":"3\" \/ 11 ON \/ 9.9 OFF \/ D","offer_id":55882736173378,"sku":"PFS-CF-112N\/6\/D","price":210.38,"currency_code":"USD","in_stock":true},{"title":"3\" \/ 11 ON \/ 9.9 OFF \/ C","offer_id":55882736206146,"sku":"PFS-CF-112N\/6\/C","price":210.38,"currency_code":"USD","in_stock":true},{"title":"3\" \/ 11 ON \/ 9.9 OFF \/ B","offer_id":55882736238914,"sku":"PFS-CF-112N\/6\/B","price":210.38,"currency_code":"USD","in_stock":true},{"title":"3\" \/ 11 ON \/ 9.9 OFF \/ A","offer_id":55882736271682,"sku":"PFS-CF-112N\/6\/A","price":210.38,"currency_code":"USD","in_stock":true},{"title":"2\" \/ 4.9 ON \/ 4.4 OFF \/ D","offer_id":55882736304450,"sku":"PFS-CF-112N\/5\/D","price":210.38,"currency_code":"USD","in_stock":true},{"title":"2\" \/ 4.9 ON \/ 4.4 OFF \/ C","offer_id":55882736337218,"sku":"PFS-CF-112N\/5\/C","price":210.38,"currency_code":"USD","in_stock":true},{"title":"2\" \/ 4.9 ON \/ 4.4 OFF \/ B","offer_id":55882736369986,"sku":"PFS-CF-112N\/5\/B","price":210.38,"currency_code":"USD","in_stock":true},{"title":"2\" \/ 4.9 ON \/ 4.4 OFF \/ A","offer_id":55882736402754,"sku":"PFS-CF-112N\/5\/A","price":210.38,"currency_code":"USD","in_stock":true},{"title":"1.5\" \/ 2.8 ON \/ 2.5 OFF \/ D","offer_id":55882736435522,"sku":"PFS-CF-112N\/4\/D","price":210.38,"currency_code":"USD","in_stock":true},{"title":"1.5\" \/ 2.8 ON \/ 2.5 OFF \/ C","offer_id":55882736468290,"sku":"PFS-CF-112N\/4\/C","price":210.38,"currency_code":"USD","in_stock":true},{"title":"1.5\" \/ 2.8 ON \/ 2.5 OFF \/ B","offer_id":55882736501058,"sku":"PFS-CF-112N\/4\/B","price":210.38,"currency_code":"USD","in_stock":true},{"title":"1.5\" \/ 2.8 ON \/ 2.5 OFF \/ A","offer_id":55882736533826,"sku":"PFS-CF-112N\/4\/A","price":210.38,"currency_code":"USD","in_stock":true},{"title":"1\" \/ 1.1 ON \/ 1.0 OFF \/ D","offer_id":55882736566594,"sku":"PFS-CF-112N\/3\/D","price":210.38,"currency_code":"USD","in_stock":true},{"title":"1\" \/ 1.1 ON \/ 1.0 OFF \/ C","offer_id":55882736599362,"sku":"PFS-CF-112N\/3\/C","price":210.38,"currency_code":"USD","in_stock":true},{"title":"1\" \/ 1.1 ON \/ 1.0 OFF \/ B","offer_id":55882736632130,"sku":"PFS-CF-112N\/3\/B","price":210.38,"currency_code":"USD","in_stock":true},{"title":"1\" \/ 1.1 ON \/ 1.0 OFF \/ A","offer_id":55882736664898,"sku":"PFS-CF-112N\/3\/A","price":210.38,"currency_code":"USD","in_stock":true},{"title":"3\/4\" (No Orifice) \/ 0.9 ON \/ 0.8 OFF \/ 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OFF \/ B","offer_id":55882736894274,"sku":"PFS-CF-112N\/1\/B","price":210.38,"currency_code":"USD","in_stock":true},{"title":"3\/4\" Fitted W\/0.25 Orifice \/ 0.4 ON \/ 0.3 OFF \/ A","offer_id":55882736927042,"sku":"PFS-CF-112N\/1\/A","price":210.38,"currency_code":"USD","in_stock":true},{"title":"5\" \/ 30.6 ON \/ 27.5 OFF \/ D","offer_id":55882736959810,"sku":"PFS-CF-112N\/8\/D","price":210.38,"currency_code":"USD","in_stock":true},{"title":"5\" \/ 30.6 ON \/ 27.5 OFF \/ C","offer_id":55882736992578,"sku":"PFS-CF-112N\/8\/C","price":210.38,"currency_code":"USD","in_stock":true},{"title":"5\" \/ 30.6 ON \/ 27.5 OFF \/ B","offer_id":55882737025346,"sku":"PFS-CF-112N\/8\/B","price":210.38,"currency_code":"USD","in_stock":true},{"title":"5\" \/ 30.6 ON \/ 27.5 OFF \/ A","offer_id":55882737058114,"sku":"PFS-CF-112N\/8\/A","price":168.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1022\/1040\/4674\/files\/CF112_7e60861b-1bfb-4aca-9f21-bb2d41bd647f.jpg?v=1786333975"},{"product_id":"harwil-cf-112vcr-chemical-feed-pump-interface-module-fortron","title":"Harwil CF-112VCR Chemical Feed Pump Interface Module, Fortron","description":"\n\u003cstyle\u003e\n  .hcf112v-wrap, .hcf112v-wrap * { box-sizing: border-box; }\n  .hcf112v-wrap {\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: #1a1a1a;\n    line-height: 1.55;\n  }\n\n  \/* Header *\/\n  .hcf112v-header {\n    border-left: 5px solid #0066cc;\n    padding: 4px 0 4px 16px;\n    margin-bottom: 20px;\n  }\n  .hcf112v-header h2 {\n    margin: 0;\n    color: #0066cc;\n    font-size: 1.55em;\n    font-weight: 700;\n    letter-spacing: -0.01em;\n  }\n  .hcf112v-subtitle {\n    margin: 4px 0 0;\n    color: #666;\n    font-size: 0.95em;\n  }\n\n  \/* Intro *\/\n  .hcf112v-intro {\n    margin: 0 0 24px;\n    color: #333;\n    font-size: 0.98em;\n  }\n\n  \/* Section heading *\/\n  .hcf112v-section { margin-bottom: 28px; }\n  .hcf112v-section-heading {\n    background: #0066cc;\n    color: #fff;\n    font-size: 0.85em;\n    font-weight: 700;\n    letter-spacing: 0.08em;\n    text-transform: uppercase;\n    padding: 6px 12px;\n    margin: 0 0 0;\n    border-radius: 4px 4px 0 0;\n  }\n\n  \/* Spec table *\/\n  .hcf112v-spec-table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 0.93em;\n    background: #fff;\n    border: 1px solid #d8dde6;\n    border-top: none;\n    border-radius: 0 0 4px 4px;\n    overflow: hidden;\n  }\n  .hcf112v-spec-table tr { border-bottom: 1px solid #eef1f6; }\n  .hcf112v-spec-table tr:nth-child(even) { background: #fafbfd; }\n  .hcf112v-spec-table tr:last-child { border-bottom: none; }\n  .hcf112v-spec-table th,\n  .hcf112v-spec-table td {\n    text-align: left;\n    padding: 8px 14px;\n    vertical-align: top;\n  }\n  .hcf112v-spec-table th {\n    font-weight: 600;\n    color: #4a4a4a;\n    width: 38%;\n  }\n  .hcf112v-spec-table td {\n    color: #1a1a1a;\n    font-family: ui-monospace, \"SF Mono\", Menlo, Consolas, monospace;\n    font-size: 0.92em;\n  }\n\n  \/* Compatibility list *\/\n  .hcf112v-compat-list {\n    margin: 0;\n    padding: 14px 16px 14px 32px;\n    background: #fff;\n    border: 1px solid #d8dde6;\n    border-top: none;\n    border-radius: 0 0 4px 4px;\n    list-style: square;\n    color: #1a1a1a;\n    font-size: 0.95em;\n  }\n  .hcf112v-compat-list li { padding: 2px 0; }\n  .hcf112v-compat-list li::marker { color: #0066cc; }\n\n  \/* Cross-reference chip list *\/\n  .hcf112v-chips {\n    padding: 14px;\n    background: #fff;\n    border: 1px solid #d8dde6;\n    border-top: none;\n    border-radius: 0 0 4px 4px;\n    display: flex;\n    flex-wrap: wrap;\n    gap: 8px;\n  }\n  .hcf112v-chip {\n    background: #f0f3f8;\n    border: 1px solid #d8dde6;\n    color: #0066cc;\n    padding: 5px 12px;\n    border-radius: 4px;\n    font-family: ui-monospace, \"SF Mono\", Menlo, Consolas, monospace;\n    font-size: 0.88em;\n    font-weight: 600;\n  }\n\n  \/* Notes \/ FAQ *\/\n  .hcf112v-notes {\n    padding: 14px;\n    background: #fff;\n    border: 1px solid #d8dde6;\n    border-top: none;\n    border-radius: 0 0 4px 4px;\n  }\n  .hcf112v-note-item { padding: 8px 0; border-bottom: 1px solid #eef1f6; }\n  .hcf112v-note-item:last-child { border-bottom: none; }\n  .hcf112v-note-q { font-weight: 600; color: #0066cc; margin: 0 0 3px; font-size: 0.95em; }\n  .hcf112v-note-a { margin: 0; color: #333; font-size: 0.93em; }\n\n  \/* Footer *\/\n  .hcf112v-footer {\n    border-top: 1px solid #d8dde6;\n    padding-top: 12px;\n    margin-top: 24px;\n    text-align: center;\n    color: #555;\n    font-size: 0.88em;\n  }\n  .hcf112v-footer .hcf112v-dot {\n    color: #0066cc;\n    margin: 0 8px;\n    font-weight: 700;\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"hcf112v-wrap\"\u003e\n\n  \u003cheader class=\"hcf112v-header\"\u003e\n    \u003ch2\u003eHarwil CF-112VCR Chemical Feed Pump Interface Module\u003c\/h2\u003e\n    \u003cp class=\"hcf112v-subtitle\"\u003eChemical flows when water flows.\u003c\/p\u003e\n  \u003c\/header\u003e\n\n  \u003cp class=\"hcf112v-intro\"\u003eThe \u003cstrong\u003eHarwil CF-112VCR\u003c\/strong\u003e is a stand alone interface module in Fortron that automatically actuates a chemical feed pump when the primary bulk fluid begins to flow. It works in isolated stand alone systems or as part of a larger system.\u003c\/p\u003e\n\n  \n    \n    \u003csection class=\"hcf112v-section\"\u003e\n      \u003cdiv class=\"hcf112v-section-heading\"\u003eFunction\u003c\/div\u003e\n      \u003ctable class=\"hcf112v-spec-table\"\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eChemical feed pump interface module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eAction\u003c\/th\u003e\n\u003ctd\u003eActuates chemical feed pump when primary bulk fluid begins to flow\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eUse\u003c\/th\u003e\n\u003ctd\u003eStand alone or as part of a larger system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eFlow Switch\u003c\/th\u003e\n\u003ctd\u003eUses Harwil Q-12 flow switch\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/section\u003e\n    \n    \u003csection class=\"hcf112v-section\"\u003e\n      \u003cdiv class=\"hcf112v-section-heading\"\u003eMaterials and Fitting\u003c\/div\u003e\n      \u003ctable class=\"hcf112v-spec-table\"\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n\u003cth\u003eBody Material\u003c\/th\u003e\n\u003ctd\u003eFortron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eIncluded\u003c\/th\u003e\n\u003ctd\u003ePVC tee\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePipe Sizes\u003c\/th\u003e\n\u003ctd\u003e3\/4 inch, 1 inch, 1 1\/2 inch, 2 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/section\u003e\n    \n    \u003csection class=\"hcf112v-section\"\u003e\n      \u003cdiv class=\"hcf112v-section-heading\"\u003eElectrical\u003c\/div\u003e\n      \u003ctable class=\"hcf112v-spec-table\"\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n\u003cth\u003eInput Power\u003c\/th\u003e\n\u003ctd\u003e120 VAC or 240 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eOutput\u003c\/th\u003e\n\u003ctd\u003e10A, 120 VAC \/ SPNO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eElectrical Connection\u003c\/th\u003e\n\u003ctd\u003eOptions A, B, C, D\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/section\u003e\n    \n  \n\n  \n  \u003csection class=\"hcf112v-section\"\u003e\n    \u003cdiv class=\"hcf112v-section-heading\"\u003eCompatibility\u003c\/div\u003e\n    \u003cul class=\"hcf112v-compat-list\"\u003e\n      \u003cli\u003eMetering chlorine to well water for homes, ranches, farms, mines\u003c\/li\u003e\n\u003cli\u003eChlorinating animal drinking water systems\u003c\/li\u003e\n\u003cli\u003eBactericides for cooling tower makeup water plus pH \/ ORP control\u003c\/li\u003e\n\u003cli\u003eBoiler treatment additives and metal plating makeup solutions\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/section\u003e\n  \n\n  \n  \u003csection class=\"hcf112v-section\"\u003e\n    \u003cdiv class=\"hcf112v-section-heading\"\u003eCross-References\u003c\/div\u003e\n    \u003cdiv class=\"hcf112v-chips\"\u003e\n      \u003cspan class=\"hcf112v-chip\"\u003eCF-112VCR\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n  \n\n  \n  \u003csection class=\"hcf112v-section\"\u003e\n    \u003cdiv class=\"hcf112v-section-heading\"\u003eNotes\u003c\/div\u003e\n    \u003cdiv class=\"hcf112v-notes\"\u003e\n      \n      \u003cdiv class=\"hcf112v-note-item\"\u003e\n        \u003cp class=\"hcf112v-note-q\"\u003eWhat is the difference between CF-112N and CF-112VCR?\u003c\/p\u003e\n        \u003cp class=\"hcf112v-note-a\"\u003e\u003cstrong\u003eCF-112N\u003c\/strong\u003e is Noryl. \u003cstrong\u003eCF-112VCR\u003c\/strong\u003e is Fortron. Choose based on the chemical compatibility your application requires.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \n    \u003c\/div\u003e\n  \u003c\/section\u003e\n  \n\n  \u003cfooter class=\"hcf112v-footer\"\u003e\n    Genuine Harwil\u003cspan class=\"hcf112v-dot\"\u003e•\u003c\/span\u003eFactory Specifications\u003cspan class=\"hcf112v-dot\"\u003e•\u003c\/span\u003eFast Shipping\u003cspan class=\"hcf112v-dot\"\u003e•\u003c\/span\u003eExpert Support\n  \u003c\/footer\u003e\n\n\u003c\/div\u003e\n","brand":"Harwil Corporation","offers":[{"title":"4\" \/ 56 ON \/ 43 OFF \/ D","offer_id":55882737123650,"sku":"PFS-CF-112R\/7\/D","price":210.38,"currency_code":"USD","in_stock":true},{"title":"4\" \/ 56 ON \/ 43 OFF \/ C","offer_id":55882737156418,"sku":"PFS-CF-112R\/7\/C","price":210.38,"currency_code":"USD","in_stock":true},{"title":"4\" \/ 56 ON \/ 43 OFF \/ B","offer_id":55882737189186,"sku":"PFS-CF-112R\/7\/B","price":210.38,"currency_code":"USD","in_stock":true},{"title":"4\" \/ 56 ON \/ 43 OFF \/ A","offer_id":55882737221954,"sku":"PFS-CF-112R\/7\/A","price":210.38,"currency_code":"USD","in_stock":true},{"title":"3\" \/ 33 ON \/ 25 OFF \/ D","offer_id":55882737254722,"sku":"PFS-CF-112R\/6\/D","price":210.38,"currency_code":"USD","in_stock":true},{"title":"3\" \/ 33 ON \/ 25 OFF \/ C","offer_id":55882737287490,"sku":"PFS-CF-112R\/6\/C","price":210.38,"currency_code":"USD","in_stock":true},{"title":"3\" \/ 33 ON \/ 25 OFF \/ B","offer_id":55882737320258,"sku":"PFS-CF-112R\/6\/B","price":210.38,"currency_code":"USD","in_stock":true},{"title":"3\" \/ 33 ON \/ 25 OFF \/ A","offer_id":55882737353026,"sku":"PFS-CF-112R\/6\/A","price":210.38,"currency_code":"USD","in_stock":true},{"title":"2\" \/ 15 ON \/ 12 OFF \/ D","offer_id":55882737385794,"sku":"PFS-CF-112R\/5\/D","price":210.38,"currency_code":"USD","in_stock":true},{"title":"2\" \/ 15 ON \/ 12 OFF \/ 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\/ 4 ON \/ 3 OFF \/ D","offer_id":55882737647938,"sku":"PFS-CF-112R\/3\/D","price":210.38,"currency_code":"USD","in_stock":true},{"title":"1\" \/ 4 ON \/ 3 OFF \/ C","offer_id":55882737680706,"sku":"PFS-CF-112R\/3\/C","price":210.38,"currency_code":"USD","in_stock":true},{"title":"1\" \/ 4 ON \/ 3 OFF \/ B","offer_id":55882737713474,"sku":"PFS-CF-112R\/3\/B","price":210.38,"currency_code":"USD","in_stock":true},{"title":"1\" \/ 4 ON \/ 3 OFF \/ A","offer_id":55882737746242,"sku":"PFS-CF-112R\/3\/A","price":210.38,"currency_code":"USD","in_stock":true},{"title":"3\/4\" (No Orifice) \/ 2.0 ON \/ 1.5 OFF \/ D","offer_id":55882737779010,"sku":"PFS-CF-112R\/2\/D","price":210.38,"currency_code":"USD","in_stock":true},{"title":"3\/4\" (No Orifice) \/ 2.0 ON \/ 1.5 OFF \/ C","offer_id":55882737811778,"sku":"PFS-CF-112R\/2\/C","price":210.38,"currency_code":"USD","in_stock":true},{"title":"3\/4\" (No Orifice) \/ 2.0 ON \/ 1.5 OFF \/ 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