This 10 inch blue housing with a black cap accepts slim-line filters and allows for easy visual filter inspection. The housing cap features a 1/2 inch NPT pipe size and a pressure relief valve. It is made of a heavy duty construction using high quality FDA grade polypropylene. It has superior chemical resistance from many aggressive chemicals. The housing lid features a buttress thread design for superior sealing and security. The thick side walls are made with heavy-duty ribs to provide greater strength. It is rated at temperatures up to 125 F (52 C) and the water pressure is rated up to 125 PSI (8.75 BAR). The cap, sump and top-seated O-rings are compressed to provide leak proof sealing.