Wall Mount Duct Shutter 4" White Steel

Non-return louvered vent hood for 4-inch ducting with thin steel shutter blades and rubber dampening stoppers.

Blades automatically open when duct fan runs and close when inactive, preventing dust, debris, and outside air from entering.

Front plate: 6.69 x 6.69 in.

White powder-coated steel construction resists rust and weather.

Rubber pads on blades reduce slamming noise and ensure complete blockage.

Compatible with 4-inch inline exhaust fans.

Secures with aluminum foil tape or duct clamps.

Suitable for grow rooms, garages, bathrooms, attics, and greenhouses.

Confirm room size, voltage, airflow, ducting, drainage, controller needs, and clearances so the equipment fits the grow space before purchase.

Weight: 15 lbs.

Dimensions: 14 x 14 x 4 in.