The XOMA automatic make up air damper systems use a unique feather switch to sense air flow to avoid false tripping. Easy to install, the sensor collar mounts in the exhaust duct and activates the automatic inlet damper (mounted in a separate air inlet duct) when air flow is detected.
-40%
6″ Automatic Make Up Air Damper Set
$69.61 Save:$47.00(40%)
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