SMC (6550090) 1215 Series Brass Check Valve ; 3/4" FNPT x 3/4" FNPT BUNA 30 - 300 GPM The C-660P CHEM-FEED injector handles

The C-660P CHEM-FEED injector handles chemical dosing applications in water treatment systems

It's most effective when used as a final polishing stage after reverse osmosis membranes

Ideal for whole-house sediment filtration

Compatible Probes and Systems

SMC (6550090) 1215 Series Brass Check Valve ; 3/4" FNPT x 3/4" FNPT BUNA 30 - 300 GPM The C-660P CHEM-FEED injector handlesSMC 6550090 1215 Series Brass Check Valve 3 4" FNPT threaded brass check valve with BUNA seal for reliable backflow prevention in residential and light commercial water systems Brass Construction 3 4" FNPT BUNA Seal WHY IT WORKS Prevents Backflow and Protects Equipment One Way Flow Control Spring loaded mechanism ensures water flows in only one direction, protecting pumps, tanks, and filtration equipment from reverse flow damage Brass Body