Pentair PacFab FNS Plus 36 sqft Tank Lid (170020) valpakproducts A properly selected replacement helps

A properly selected replacement helps restore intended heating output while supporting a more durable repair path where titanium is preferred

and follow applicable installation guidelines

Useful when original contactors are worn or unreliable

and part number 8520031Z

Pentair PacFab FNS Plus 36 sqft Tank Lid (170020) valpakproducts A properly selected replacement helpsThis tank lid is used with compatible PacFab FNS Plus 36 square foot DE filter systems where the upper housing requires replacement. It helps complete the pressure vessel and provides the top side structure for proper filter operation. A damaged lid can create unsafe pressure issues, leaks, or difficulty sealing the filter after cleaning. Tank lid for FNS Plus 36 sqft DE filters Completes the upper pressure housing Useful for damaged or leaking lid