Pentair 154856 Black Buttress Thread Closure Replacement Kit Triton Pool and Spa Filter Buttress thread closure replacement kit Fits Pentair Triton II, C-3 pool and spa sand filter models TR40, TR50, TR60, TR100, TR140, TR100C, TR140C, TR100C-3, TR140C-3 Available in black color Measures 17-1/4-inch length by 4-1/2-inch height by 10-inch width