Pentair 14971-SM20E7 Cover O-Ring Replacement Sta-Rite 2-Inch MultiPort Pool and Spa Valve Cover o-ring replacement Fits Pentair Sta-Rite 2-inch multiport side mount pool and spa valves Also fits Pentair Sta-Rite 2-inch multiport pool and spa valves Measures 7-inch length by 1/4-inch height by 7-inch width