This Mounting Foot Cap Screw 2 Pack is for use with the following pump series and models: MaxFlo SP2800X, NorthStar SP4000 and SP4000X, Super II SP3000 and SP3000X, and Super Pump VS SP2600VSP. The screws are threaded to provide extra holding strength. With the pool as the centerpiece of the rapidly growing Outdoor Living market, Hayward is prioritizing innovation, efficiency, and comfort. We’ve built industry-leading equipment, filters, and pumps for over 100 years, and today, we are at the forefront of innovation for pool and outdoor living technology and internet-connected homes.