SMC (6850090) 685 Series PVC NSF Check Valve ; 1/2"FNPT x 1/2"FNPT Buna - Pack of 3 GE Desal Residential RO Membranes Replace if cracked

Replace if cracked

Factory standardized

protecting the membrane and improving water quality before the RO stage

Feed Valve for RO and Filtration Systems

Superior hardness rating resists breakdown during backwashing

SMC (6850090) 685 Series PVC NSF Check Valve ; 1/2"FNPT x 1/2"FNPT Buna - Pack of 3 GE Desal Residential RO Membranes Replace if crackedSMC 685 Series NSF Certified Check Valve SMC 6850090 PVC Check Valve 3 Pack NSF rated check valve for reliable backflow prevention in RO systems and water treatment applications NSF Certified PVC Construction 1 2" FNPT Threaded Connections Buna N Seal Material Pack of 3 The SMC 685 Series check valve prevents reverse flow in residential and light commercial water filtration systems. Built with NSF certified PVC body and Buna N seals, this valve