Pentair System 3 Filter Lid Kit, 21" | 24851-9000 Loveseat Replacing them helps maintain correct

Replacing them helps maintain correct water flow and pressure

Direct vent design provides sealed combustion for safer indoor installations

and accessory package

Waterway Plastics has a long history in pool and spa components

Modular design supports flexible installation in skimmer assemblies

Pentair System 3 Filter Lid Kit, 21" | 24851-9000 Loveseat Replacing them helps maintain correctWhat This Part Is Used For Pentair 24851 9000 Lid Kit System 3, Filter, 21in is a replacement lid kit for compatible Pentair System 3 21in filter tanks. It covers and seals the filter housing. Why This Part Matters A secure lid ensures stable internal pressure and prevents water leaks. Cracks or damaged lids can compromise filtration performance. Replacing the kit restores safe system operation. Key Features and Specifications Pentair manufacturer