Pentair 274407 White Bulkhead Adapter Nut Replacement Hi-Flow Pool and Spa Valve Bulkhead adapter nut replacement Fits Pentair HiFlow pool and spa 2-inch valve models 261049, 261050, 261142 Also fits Pentair HiFlow top and side mount pool/spa multiport valves Available in white color Measures 4-1/4-inch length by 4-1/4-inch height by 1-1/8-inch width