Zone Expander Board
$141.99
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The Zone Expander allows the HUG Hydronics In-floor Heating System to handle up to 8 heating zones, up from the standard 4. This cute little add-on board plugs easily onto the control board, you can do it yourself if you need to upgrade later or will be installed before it is shipped
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$129
$141.99
(+$12.99)