Pentair Heater Dual Relay Kit | 520403 AquaPro Replacing worn straps helps maintain

Replacing worn straps helps maintain proper cleaner positioning and protect pool surfaces

Add the contents to spa water after use or as part of regular maintenance

Manufacturer part number SPX1485B3

This component is a floor return fitting assembly used to return filtered water into the pool or spa through the floor return path

Pentair Heater Dual Relay Kit | 520403 AquaPro Replacing worn straps helps maintainWhat This Part Is Used For Pentair 520403 Heater Dual Relay Kit is a replacement relay kit used in compatible Pentair heater control systems. It manages power distribution within the heater assembly. Why This Part Matters A faulty relay can prevent heater startup or cause intermittent operation. Replacing the dual relay kit restores proper electrical switching. Reliable relay performance supports consistent heating cycles. Key Features and