The Flowmatic 10" Filter Housing is a heavy-duty housing that's made using high-quality FDA-grade polypropylene. Thick side walls with heavy-duty reinforcing ribs offer greater strength. This housing provides superior resistance to many aggressive chemicals. A buttress thread design ensures superior sealing and security, while compressible EPDM O-rings in the white cap, sump, and top seat provide an added measure of sealing. This housing is made for 2.5" x 10" filter cartridge. Inlet and outlet ports are 1/2" NPT.• Resists most acids, alcohol, ammonia, oils, and plating solutions• Temperature range: 40°F to 100°F• Non-pressure relief valve style• Maximum pressure: 100 PSI Buttress thread design with compressible EPDM O-rings for superior sealing Resists most acids, alcohol, ammonia, oils, & plating solutions Made for 2.5"" x 10"" filter cartridge | Flowmatic Flow-Pur Standard 10" RV Water Filter Housing with 1/2" Ports in White