VERSATILE COMPATIBILITY: The 87300400Z pool filter replacement parts are designed to for ,for Pool and Spa Filter System,for EasyClean Aboveground,for Warrior Pool and Spa DE filter System, being suitable for the following filters: for , for EasyClean, for RP, for ,for EasyClean DE, for Posi-Clear RP, Separation Tank. Effective Seal Technology: O-ring is crafted to create a perfect seal, preventing any leaks that could diminish the effectiveness of your filtration system. By maintaining an airtight seal, this O-ring not only prevents water leakage but also ensures that your filter operates at maximum efficiency, keeping pool water consistently clean and reducing the need for frequent maintenance. Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:Photo Color Material:rubber Package Contents: 3 x Pool Filter O Ring Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.