SMC (6870090) 687 Series PVC NSF Check Valve ; 3/4"FNPT x 3/4"FNPT Buna Quantity:Pack of 2 5" L × 4" W

5" L × 4" W Filtration Media C-249 Softening Resin (FDA Grade) Micron Rating 10 Micron Flow Rate 1

Use with filters in carbon block

The Watts FU-WDF-888-ST brings European design and durable construction to your RO system

High-capacity GAC removes chlorine taste and odor

5" cartridge format

SMC (6870090) 687 Series PVC NSF Check Valve ; 3/4"FNPT x 3/4"FNPT Buna Quantity:Pack of 2 5" L × 4" WSMC 687 Series 3 4" FNPT PVC Check Valve with Buna Seals Glass filled polypropylene construction with low 1 PSI cracking pressure for reliable one way flow control NSF Certified 125 PSI Max 17 GPM Flow Viton Seals The SMC 6870090 check valve prevents backflow in RO systems, booster pump installations, and pressurized water lines where maintaining directional flow is critical. Install downstream from your pump to eliminate water hammer and protect