Marketing InformationThis 20 in blue housing with a black cap accepts full flow filters. The housing cap features a 1 in NPT pipe size connection with a pressure relief valve. A leak-proof sealing is accomplished by compression against a top seated EPDM O-ring located in the housing's sump. The heavy-duty construction is made using high quality FDA-grade polypropylene. It has a superior chemical resistance from many aggressive chemicals. The thick side walls and buttress thread design allows for superior sealing and security. It is-rated at temperatures up to 125 deg F (52 deg C). The water pressure is-rated up to 125 psi (8.75 bar).