(12 Pack) Pentair Compool 2 1/2" - 3" Diverter Valve O'ring Kit 12 Pack of 2 1/2" - 3" . Size Cover & Shaft O-ring Kits These DO NOT fit 1 1/2" - 2" Valves These are Quality TORK Brand orings, fits both 2 and 3 ways port valves you get 24 shaft orings and 12 cover orings