FibroPool Swimming Pool Check Valve - 1 1/2 Inch - Positive Seal & Non Lube Replacement Valve for Pools and SpasBrand: FibroPool Color: Black Features: ++ Fibropool 1 1 2" Posi Close check valve. it features 1 1 2" slip ports. Your 1 1 2" pipe will glue inside the port. ++ The valve is Spring loaded to open at 5 PSI. ++ CPVC construction allows temperature and impact resistance. ++ Serviceable, but does not need grease or lube, PTFE seats are lubeless. ++ Ideal for heater and chemical dispenser salt generator installations. model number: ValvesPOSI1. 5InchCheck