154575 Closure Replacement: Precision-engineered closure replacement designed specifically for Triton Pool and Spa Fiberglass Sand Filter, ensuring good performance and durability. Compatibility with Pentair Triton C Series: Compatible with Filters Triton C TR100C/TR140C and Triton C-3 (manufactured before March 1997), ensuring a proper fit and seamless operation. 8-1/2" Diameter: With an 8-1/2-inch diameter, this closure replacement provides ample coverage for reliable and efficient filtration. Easy Installation: Effortless installation without the need for specialized tools. Simple replacement steps allow you to restart your Triton system quickly. Filter Lid,tank Lid Filter LID ，154575，Compatible with TR100C/TR140C/Triton C3, 8-1/2" Diameter