Pentair 272400 1-13/16-Inch Outside Diameter Compression Spring Replacement Hi-Flow Pool and Spa Valve Compression spring replacement Fits Pentair HiFlow pool and spa 2-inch valve models 261049, 261050, 261142 Also fits Pentair Hi-Flow six-way 1-1/2-inch multiport pool and spa valves Measures 1-3/4-inch length by 1-3/8-inch height by 1-3/4-inch width