The Hayward SPX1500P Power-Flo Pump Strainer O-Ring is an essential component that ensures the proper operation of your pool pump system. This strainer O-ring fits the Power-Flo pump's strainer cover precisely because to its interior diameter of 5-1/8", outside diameter of 5-1/2", and thickness of 3/16". This O-ring, which is made of sturdy, high-quality materials, seals tightly to st... https://www.usapoolshop.com/spx1500p-hayward-power-flo-pump-strainer-o-ring