The Pentair 154687 Air Relief Valve Assembly Kit is a critical component that helps to maintain proper air pressure in various HVAC systems. This assembly kit comprises an Air Bleeder/Tee Assembly, Adapter, O-Ring, Nut, and Washer, all designed to provide seamless air pressure management. With dimensions of 3.5" x 1.25" x 1.25", this air relief valve's compact design enables for simpl... https://www.usapoolshop.com/154687-pentair-air-relief-valve-assembly-kit