Balboa Circuit Board - Ext. Relay 2 Output US (53426) heaters Ideal for upgrades and replacements

Ideal for upgrades and replacements

Manufactured to withstand exposure to water

and extend overall equipment lifespan

That combination matters because a well-matched heater should restore both warmth and system confidence

helping manage operation from a convenient interface point

Balboa Circuit Board - Ext. Relay 2 Output US (53426) heaters Ideal for upgrades and replacementsSome spa systems rely on extension relay boards to manage added outputs in a clean and organized way. This 2 output US relay board is designed for compatible applications where those extra control paths need to be restored without replacing the entire control pack. For many repairs, that makes it the smarter and more efficient solution. When an output level relay board begins to fail, the symptoms often affect only certain accessories or functions,