$14 FRESH SPEED 4-Inch Backdraft Damper Shutter...

Updated August 10, 2026

Lot number8186
AuctionBreeze and Bid
DateAugust 15, 2026 at 6:00 PM EDT
Auction houseSSLiquidations
LocationFort Wayne, Indiana

Inline Spring Loaded | Galvanized Steel Valve, Aluminum Blades, Foam Sealed, Fits 4" AC, Dryer, Extractor, Bath Exhaust Ducts, One-Way Valve. Condition: New Damaged?: No In Packaging?: Yes Assembly Required?: No Missing Parts?: No Functional?: Yes Model: 752349625313 Title: $14 FRESH SPEED 4-Inch Backdraft Damper Shutter Inline Spring Loaded | Galvanized Steel Valve, Aluminum Blades, Foam Sealed, Fits 4" AC, Dryer, Extractor, Bath Exhaust Ducts, One-Way Valve Home Improvement: Especially suitable for inserting into dryer duct. Perfect for use in bathrooms, garages, sheds, campers, stopping inflow of air from AC units, range hood extractors, heating systems Easy Installation: The duct damper opens and closes automatically, allowing only one-directional airflow. The damper blades open only in the outflowing air direction when the shutter is installed. The duct valve for 4-inch duct best installed in a horizontal position and inserted fully into the duct. This also applies to vertical installation High-Quality Material: The casing of the shutter is made of galvanized steel sheet. The dryer vent valve blades are made of aluminium. The shaft and spring are made of stainless steel Great for Home Use: The inner rubber seal is used for better tightness and for noise reduction. The outer foam sealing strip provides good tightening and fixing of the backdraft damper inside the duct. The back draught valve can be inserted into a non-flexible metal or plastic duct directly, but for flexible duct you must use steel duct clamps to secure the backdraft damper Spring Loaded Mechanism: Features a reliable spring-loaded design that ensures the damper blades automatically close when airflow stops, preventing backdraft and maintaining proper ventilation control in your duct system.

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$14 FRESH SPEED 4-Inch Backdraft Damper Shutter...

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