Welcome to the Balboa Expander Boards section of our store.These small circuit boards are used to expand the capability of certain GS, GL & BP Spa control boxes, allowing you to run additional water pumps or an air blower for example. |
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Welcome to the Balboa Expander Boards section of our store.These small circuit boards are used to expand the capability of certain GS, GL & BP Spa control boxes, allowing you to run additional water pumps or an air blower for example. |
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