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Harwil CF-112N Chemical Feed Pump Interface Module, Noryl
Harwil CF-112VCR Chemical Feed Pump Interface Module, Fortron
Harwil L-40N Liquid Level Float Switch, Noryl PPO, Side and Top Mount
Harwil L-8N / L-8CR Level Switch, Specific Gravity Compensating 0.6 to 1.5