Intex Above Ground Pool Piston Valve Replacement Part (2 Pack) **Intex Piston Valve Replacement Part (2 Pack)** Replacement on/off valve for pool filter pump for use with Intex above ground pools using 1-1/2" diameter hoses with 2-1/2" threaded connector fittings Replace your old piston valve(s) or upgrade to the Intex piston valve system, making changing hoses and pumps easy Assembly includes piston valve, hose O-ring, and step washer