Replacement Intex Air Release Valve and Sediment Release Valve O-Ring 4-pack. Sediment drain and air release valve is found on all Intex Wet Set and Krystal Clear filter pump systems. Valve is used for draining water and sediment from cartridge canister as well as on top of filter pump systems for air bleeding of filter system. Compatible with: 26165EH, 26167EH,...