General description AlwaysH Above Ground Piston Valve Kit includes 2 replacement piston valves designed for use with pool filter pumps in above ground pools. This kit allows for easy replacement of old piston valves or an upgrade to a piston valve system, simplifying hose and pump replacements. Technical specifications Replacement on/off valve for pool filter pumps Compatible with 1.5" diameter hose Features 2.5" threaded fittings Compatibility and accessories Compatible with filter pumps models: 28635EG, 28633EG, 28671EG, 28645EG, 28647EG, 28651EG, 28677EG, and 28681EG