π§ Pentair HydroPump Lid O-Ring Part #352602 | Replacement Lid O-Ring for Pentair HydroPump Systems The Pentair HydroPump Lid O-Ring is a genuine replacement seal designed to help maintain a tight, leak-resistant connection at the pump lid. A worn, flattened, or cracked O-ring can allow air leaks or water seepage, which may affect pump performance and priming. Replacing the lid O-ring helps restore proper sealing and dependable operation. β Key Features: Genuine Pentair replacement part Designed for Pentair HydroPump lids and compatible HydroPump assemblies Helps prevent air leaks and water leaks at the lid seal Supports proper priming and efficient pump performance Ideal for routine maintenance and seal replacement π Installation Tips: Turn off the pump and relieve system pressure before servicing Remove the pump lid and inspect the sealing surface Clean the groove and lightly lubricate the new O-ring with a pool-safe lubricant if recommended by the manufacturer Seat the O-ring evenly and reinstall the lid securely Check for leaks after startup and retighten only as needed π Best used when the original seal is damaged, dry, stretched, or no longer sealing properly. For best results, verify fit by matching part number 352602 to your specific Pentair HydroPump model before installation.