(Box 3.4) Balboa GS501SZ Control Box 3.0kW
Additional Notes:
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The M7 technology means you do not need to have sensors and flow switches going back into the tub as everything is done inside the control box by 2 sensors.
This is a generic unlicensed control box. This unit must be fitted by a competent individual or tradesman. Incorrect installation could invalidate the warranty.
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