
Opening/closing damper prevents outside elements from entering the ventDamper is spring loaded to keep damper closed when not in useFor 3-1/4" x 10" ductDamper spring controlledAluminumMill finish
Opening/closing damper prevents outside elements from entering the vent
Damper is spring loaded to keep damper closed when not in use
For 3-1/4" x 10" duct
Damper spring controlled
Aluminum
Mill finish