General description Intex 2 Pack Above Ground Piston Valve with Gasket and Nut is designed for easy replacement and upgrade of your pool filter pump system. This set includes two replacement piston valves that facilitate the on/off function for Intex above ground pools, ensuring compatibility with 1.5" diameter hoses and 2.5" threaded fittings. Technical specifications Includes: 2 piston valves, hose O-ring, and step washer Compatible with filter pumps: 28635EG, 28633EG, 28671EG, 28645EG, 28647EG, 28651EG, 28677EG, and 28681EG