IrrigationKing 4 inch dual body disc filter - 120 mesh - 395 GPM. Inlet/Outlet: 4 inch MNPT. Screen: 120 mesh. Maximum pressure: 110 psi. Range of flow rate: 352-440 GPM. Nominal flow rate: 395 GPM. Filtration surface area: 601 in². cartridge diameter: 5.5 inch (131mm). cartridge Length: 20.5 inch (525mm) x 2. Overall height: 48.89 inch (1240mm). distance between connections: 14.17 inch (360mm). .