Pentair FNS Plus Filter Lid Assembly, 48 sq ft | 170021 Waterway Install it in areas where

Install it in areas where motion needs to be transferred efficiently

Built to endure harsh seasonal conditions

Series / line: Promesh

Manufacturer part number SP11054

Pentair FNS Plus Filter Lid Assembly, 48 sq ft | 170021 Waterway Install it in areas whereWhat 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