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The Whale Expanse Gas/Main PCB (782.129) (AK1911) is a replacement Whale Printed Circuit Board. The PCB is compatible with the Whale Gas-Only Expanse water heater models
The Whale Expanse Gas/Main PCB (782.129) (AK1911) is a replacement Whale Printed Circuit Board. The PCB is compatible with the Whale Gas-Only Expanse water heater models