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💨 Keep your air fresh and your space flawless with MIVIDE’s sleek airflow guardian!
The MIVIDE 2Pack 4 inch Backdraft Damper Duct offers a precision-engineered, durable solution to prevent backdrafts in residential and industrial ventilation systems. Made from galvanized steel with stainless steel springs, it ensures reliable one-way airflow, easy installation, and quiet operation—perfect for kitchens, bathrooms, and exhaust fans.
| ASIN | B093KJ34Q8 |
| Best Sellers Rank | #114,049 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #204 in HVAC Ducting |
| Blade Length | 4 Inches |
| Blade Material | Plastic |
| Brand Name | MIVIDE |
| Color | 4 inch |
| Control Method | Touch |
| Controller Type | Button Control |
| Customer Reviews | 4.6 4.6 out of 5 stars (189) |
| Electric Fan Design | Exhaust Fan |
| Finish Type | Metallic |
| Indoor Outdoor Usage | Indoor |
| Installation Type | insertion |
| Is Electric | Yes |
| Is Product Cordless | No |
| Item Dimensions D x W x H | 0.02"D x 3.46"W x 3.94"H |
| Manufacturer | Pei hong |
| Material | Stainless Steel |
| Model Name | MIVIDE |
| Model Number | 613966160321 |
| Mounting Type | Wall Mount |
| Number of Blades | 2 |
| Part Number | 613966160321 |
| Power Source | Corded Electric |
| Recommended Uses For Product | Exhausting |
| Room Type | Kitchen, Office |
| Style | Industrial |
| UPC | 613966160321 |
| Unit Count | 2.0 Count |
D**R
Work as expected. Price half that of big box stores.
I vent 2 bathrooms into a single vent out the roof. I needed to install these on each side to prevent backdraft. I disconnect the pipe at the roof vent and installed these then turned on the fan before reconnecting. The flappers opened and worked as expected. Added benefit was the gasket on the flapper. I'm sure the seal is not perfect however it is good enough for what i need. They fit into the existing 4" duct work without issues. Availability was key, local stores did not have anything like these in stock.
C**E
Very nice addition
Used for two fans into one exhaust, works perfectly
A**D
Nice product
Easy to install perfect for a 2dryer home. Keeps them from steaming up when one or the other isnt running
R**.
They seem to work just fine
I elected to vent two bathroom exhaust fans through a single roof vent. I installed these backdraft dampers to ensure exhaust from each bathroom traveled out the roof vent and didn't travel into the other bathroom. These dampers appear to meet my objective. I didn't venture onto the roof to see how much air volume is exiting the roof vent, but I ran each fan individually and checked the non-running fan opening for an signs of air movement from the fan into the room and didn't detect any. You need to install these dampers in a horizontal position and that took a few minutes to get right in my situation. Other than that , they installed easily with some clamps and foil tape.
M**A
Yes
Works
B**B
Worked great
These worked great. The gasket keeps any flow from backdraft Just note that they only fit over female end.
C**N
Good fit the springs on the damper doors are not that sturdy
These were easy to install and do the job. My only concern is the sturdiness of the damper door return spring. We live on the River and year round humidity is a real problem. I installed these as the dampers on bathroom exaust fans suck and never close completely.
T**S
Good product
Couldn’t find these locally. Happy to have found them here.
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