The Pentair 35505-1440 Trap Cover O-Ring is designed as a replacement part for Pentair Pool and Spa Inground Pumps, specifically the IntelliFlo XF Pump. Made of durable material, this O-Ring ensures a tight seal to prevent leaks and maintain the efficiency of your pump. It falls under the category of plumbing repair kits and is essential for maintaining the functionality of your pool or spa inground pump.