Fantech 4" Duct Manual Iris Damper
About the Fantech IR4 4" Duct Manual Iris Damper
Duct dampers allow you to control temperature and other types of systems where ductwork is involved. By installing the Fantech IR4 -4” duct damper, you are gaining further control over your ducting. With the built-in calibration, the Fantech IR4 is even easier to setup. Based on how you setup the damper, the damper will open or close and allow or restrict air flow respectfully.
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