Pentair 154689 Air Bleeder Tee Assembly Replacement Pool and Spa Filter Air bleeder tee assembly replacement Fits Pentair Triton II pool and spa sand filter models TR140, TR50, TR60, TR100 Also fits Pentair System 3 SS series pool and spa sand filter models S7S50, S8S70 Measures 3-inch length by 1-1/2-inch height by 1-3/4-inch width