Pentair IntelliChlor Union [Qty-2] (520595) spaaccessories or no longer seals or

or no longer seals or seats properly

An overlay is useful because it restores the visible legends on the panel surface

This is important in replacement work because a poor-quality button can stick

Correct fitting replacement helps restore the structure the rest of the parts rely on

Pentair IntelliChlor Union [Qty-2] (520595) spaaccessories or no longer seals orThe Pentair 520595 IntelliChlor union set includes two unions for compatible IntelliChlor plumbing connections. Union fittings like these are useful because they make it easier to connect, remove, or service the related cell or assembly without cutting plumbing apart during maintenance. Replacement is often helpful when the original unions are cracked, damaged, worn, or no longer sealing or tightening correctly. Installing the correct Pentair union