Pentair IntelliChlor Replacement Unions | 520595 HydroAir Flush plug with gasket seals

Flush plug with gasket seals openings to prevent leaks during shutdowns

A worn switch can interrupt power flow and make a Raypak heater not working problem look like a bad board or deeper electrical failure

Physical role: Provides a mounting enclosure that aligns and secures the Aqualink RS control module within a housing

with professional installation recommended for best results

Pentair IntelliChlor Replacement Unions | 520595 HydroAir Flush plug with gasket sealsWhat This Part Is Used For Pentair 520595 IntelliChlor Replacement Unions are replacement union fittings for compatible IntelliChlor salt chlorine generator systems. They connect the cell to pool plumbing. Why This Part Matters Properly sealed unions prevent leaks around the salt cell. Replacing worn fittings restores secure installation and stable flow. Reliable connections support consistent chlorine generation. Key Features and Specifications