SMC (6540090) 815 Series Brass Check Valve ; 1/2" FNPT x 1/2" FNPT BUNA Watts (RC-W-20) 20"x 2.5" Empty Filter Cartridge 54-inch height) and media volume

54-inch height) and media volume requirements before ordering

24 VAC 90 PSI Bypass Up to 100 GPD

hardness minerals

Turn on water flow gradually and verify that the flow rate falls within the 50-350 mL/min range

Flush the cartridge for 3-5 minutes after installation to remove any fine particulates and prime the media bed for optimal pH correction

SMC (6540090) 815 Series Brass Check Valve ; 1/2" FNPT x 1/2" FNPT BUNA Watts (RC-W-20) 20"x 2.5" Empty Filter Cartridge 54-inch height) and media volumeSMC 6540090 815 Series Brass Check Valve with BUNA Seal 1 2" FNPT threaded brass check valve prevents backflow in residential and commercial water filtration systems Brass Construction BUNA Seals 1 2" FNPT Ports 815 Series The SMC 815 Series brass check valve uses a BUNA elastomer seal to maintain one way flow in pressurized water lines. Threaded 1 2" female NPT ports on both inlet and outlet make installation straightforward in reverse osmosis