Pentair FNS Plus Filter Lid Assembly, 48 sq ft | 170021 Waterway modern touch while providing a

modern touch while providing a heat-resistant media bed

Built to endure harsh seasonal conditions

Manufacturer part number SP11054

Install it in areas where motion needs to be transferred efficiently

Pentair FNS Plus Filter Lid Assembly, 48 sq ft | 170021 Waterway modern touch while providing aWhat This Part Is Used For Pentair 170021 Lid Assembly 48Sqft, FNS Plus is a replacement lid for compatible FNS Plus 48Sqft filters. It covers and seals the filter tank. Why This Part Matters Maintaining a proper seal prevents pressure loss and water leaks. A damaged lid can disrupt filtration efficiency. Replacing it helps restore consistent filter performance. Key Features and Specifications Pentair manufacturer part number 170021 For FNS Plus