Pentair 35505-1275 O-Ring Cover Replacement for Sta-Rite 1-1/2-Inch Multiport Pool and Spa Valves # 2-258 O-ring cover replacement Fits Sta-Rite 1-1/2-Inch Multiport pool and spa valves model WC112-148, WC112-148A This product weighs 0.02-pounds