Hayward SP1056 Hydrostatic Relief Valve
The Hayward SP1056 Hydrostatic Relief Valve is designed to help prevent pool damage from external hydrostatic pressure beneath the pool shell when the pool is drained. Hydrostatic relief valves should be replaced every time the pool is drained. The SP1056 valve is made with white ABS material, is spring loaded with a leakproof self-cleaning o-ring seal and is noncorrosive and nonconductive. This valve fits 1-1/2 and 2 inch plumbing.
Complies with provisions of ASME/ANSI A112.19.8 2007
Hayward SP1056 Relief Valve Suction Outlet Collector Tube 1-1/2-Inch MIP Hydrostatic Relief Valve Spring Loaded. Relief Valve and Suction Outlet Collector Tube For concrete or vinyl/fiberglass pools, Hayward NSF listed suction outlets are available in a wide range of styles and sizes to satisfy any installation requirement. Whether you install frame and covers, for residential or commercial pools, or sump-type outlets, Hayward suction outlets set the standard in quality and value.