4 Inch Backdraft Damper, Duct Draft Stopper One-Way Airflow Ducting Insert with Spring-Loaded Folding Blades for 4 Inch Ducting in Range Hoods, Bathrooms Fans, and Kitchen Fan
- SKU:
- AN-DAM4
- Effective Airflow Control: ATOM NEXUS backdraft damper is designed to permit airflow in one direction and prevent it from reversing, thus optimizing the efficiency of the ventilation system, and helping you maintain the best air quality.
- Superior Durability: Crafted with high-quality galvanized steel, the backdraft damper boasts excellent corrosion resistance, heat resistance, and rust prevention, ensures durability and long-lasting performance.
- Lightweight Blade: Aluminum butterfly damper blades with lightweight springs can fold with minimal airflow. The backflow flap closes automatically at low air volumes, enhancing its reliability.
- Easy Installation: Simply insert the backdraft damper into the air duct for effortless installation. It prevents backflow and debris whether mounted horizontally or vertically. For optimal operation, position the spring horizontally when installed.
- Wide application: Fits for 4-inch duct openings. Product Length: 5.03 inches. This draft blocker can easily be inserted into either flexible or non-flexible ventilation ducts. Ideal for range hoods, bathroom exhaust fans, kitchen ventilation, as well as other home HVAC systems.
Returns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.