Easy to install: Comes with all necessary installation tools, wrench, heavy-duty steel mounting bracket, 4 screws; Standard 1" NPT brass inlet/outlet fits most ports; Does not include filter cartridges and push-fit fittings Reliable material: The whole house water filter housing is made of PET material, which is pressure and corrosion resistant and ensures a safe and healthy water filtration experience Improved design: Compared to inline water filter housings, our filter housing The 10" x 4.5" water inlet is thickened and the port is upgraded to brass, and a double O-ring design is used to ensure there will be no water leaks after long-term use. Compatible Filter Cartridges: Fits standard 4.5" x 10" universal filters, such as sediment filter cartridges (PP10BB), sediment and carbon filter cartridges (PP10BB-CC), pleated filter element (PPL10BB), and carbon filter element (CTO10BB) DIY Inline Water Filter Box: You can get multiple filters Complete water filtration systems are installed in parallel (two or three stages) to achieve the desired filtration quality. Depending on your water quality, you can choose a sediment filter, a carbon water filter, etc. Note: Be careful during installation to avoid damaging the brass wires and causing more serious leaks. The built-in red pressure release button is used to release water pressure for easier filter replacement. The maximum rated pressure is 350 psi. Wide application: This filtration system can be placed in the main water pipe entering the house, protecting downstream pipes, water purifiers, water heaters, wall-mounted boilers, washing machines, shower heads and other terminal equipment and appliances