The R400 Series is a high capacity float valve with male NPT inlet and outlet connections. The model features an adjustable short arm for customizing water level. Applications include cooling towers, livestock waterers, car washes, high pressure washes, swimming pools and many other agricultural and industrial applications. Construction: Heavy duty cast brass with standard nitrile seals. Free discharge Flow Capacity: 12 GPM @ 35 psi, 18 GPM @ 65 psi and 22 GPM @ 85 psi. Weight: 0.63 Lbs. Lead Free.