Metal Box Damper for Vent Control in multiple sizes. Made in the U.S.A. Can adapt to a grill or vent that does not already include a damper. Some states like MN now require a damper control on every vent for new construction.
- Designed to fit in vent
- Standard sized vent
- Could be fastened directly into subfloor cavity as well
- Control lever is designed to be accessible through a louver in the vent cover