Pentair 071660 18-8 Stainless Steel Socket Cap Set Screw - 1 ea Socket Cap Set Screw Replacement - 1 ea Fits Pentair Intelliflo VF, VS 3050, VS-SVRS inground pool and spa pump Also fits Pentair Whisperflo WFE inground pool and spa pumps Made of 18-8 stainless steel Measures 1-1/4-inch length by 1/4-inch height by 1/4-inch width