eMagTech 2Pack Pool Filter O Ring Gasket Compatible with Pentair Triton C 3 TR100C TR140C 8.5 Inch NBR Seal Replace OEM 152509

["- Compatibility: Compatible with Pentair Triton C-3 pool and spa filters including TR100C and TR140C.","- Function: Creates a tight seal between filter components to prevent water and air leaks and maintain proper filtration performance.","- Replacement: replace OEM 152509; Compatible with Waterfall AFP-180; Compatible with Challenger 345300 and 345210.","- Material and Size: Nitrile rubber NBR with approximate dimensions 221.5 x 231.9 mm and 6 mm thickness; 8.5 inch size.","- Application: Ideal for routine pool maintenance and filter servicing to support stable water circulation in residential and commercial systems."]