By: Vent Systems
Vent Systems 8 Inch Backdraft Damper is the perfect choice for HVAC Ducting. This heavy-duty inline springs loaded backflow shutter is designed for easy installation and maintenance. It provides one-way airflow and is an effective vent deflector for inline fan systems. With a commitment to customer support and unparalleled durability, Vent Systems is the brand to trust for all your HVAC needs.
KH: Habe die Klappe in ein PVC Rohr DN 100 eingebaut. Leider hatte mein Badlüfter nicht genug Power um die Klappe aufzudrücken. Musste sie wieder ausbauen.
Germany on Jun 01, 2023
Nath: Pour que 2 logements pussent partager le même tuyau de sécheuse
Canada on Feb 09, 2023
ddewey: These worked very well where I installed a wood furnace into the main furnace duct in my house. No problems installing them.
United States on Feb 03, 2023
Tie: It was 100% what I needed. Once installed, we discovered air was coming from around the vent vs from outside. Sealed that up with foam and now no air leaking. :)
Canada on Jan 28, 2023
Keith H: It functions well, it’s solid but it doesn’t fit well. It’s a smaller diameter than it should be.
United States on Jan 10, 2023
Jerry Nicolazzo: Works amazing keeps cold air out just like it should. Would definitely recommend
Canada on Nov 14, 2022
Juan R. Barquet: Very good quality bought, the shaft on the center comes out quite a bit and was very hard to get it in the 6" duct. You will have to make it work and will not be easy.
United States on Nov 13, 2022
Franklin87: After ordering in the winter, I finally got a hold of the roofer to pull the old exhaust on roof so I could replace it and add this damper in the trunk line.
Installed just after the kitchen exhaust comes up through the ceiling cavity. Keeps the conditioned air out of the attic and closer to where it needs to be to prevent condensation dripping back.
Installed easily. However, like other reviews say, the springs are strong.... maybe too strong. I installed it vertically in a 6" round duct that goes straight up.
For now I can only use the kitchen exhaust on High Speed mode. Low setting will not allow the damper flaps to budge.
Foam gasket does help eliminate the slamming metal sound you normally would get.
United States on Sep 29, 2022
Niko: Installed for my range hood. Put this up near the termination through the roof, works well and hardly makes any sound when it opens or closes. Make sure when you install this that you're not putting it right next to the fan if you can avoid it. Putting it further down the line will help with static pressure and airflow.
United States on Jun 30, 2022
| 8-Inch Vent System Backdraft Damper - Backflow Prevention Shutter | Heavy-Duty Aluminum Ducting with Four-Layer Protection | VIVOSUN 6 Inch 25 Foot Black Non-Insulated Flex Air Aluminum Ducting for HVAC Ventilation and Cooling System Maintenance | |
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| B2B Rating |
94
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96
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96
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| Sale off | $5 OFF | ||
| Total Reviews | 25 reviews | 201 reviews | 57 reviews |
| Number of pieces | 1 | ||
| ASIN | B08GY1D4Z3 | B0791V19H7 | B07WT4VNC1 |
| Brand | Vent Systems | AC Infinity | |
| Item Weight | 12.3 ounces | 0.01 ounces | 4 pounds |
| Batteries required | No | No | |
| Manufacturer | Vent Systems | No | VIVOSUN |
| Controller TypeButton Control | MaterialMetal | ||
| Customer Reviews | 4.2/5 stars of 249 ratings | 4.7/5 stars of 7,403 ratings | 4.6/5 stars of 5,829 ratings |
| Style | Industrial | ||
| Package Dimensions | 8.14 x 8.03 x 3.81 inches | 16.42 x 6.61 x 6.57 inches | |
| Best Sellers Rank | #298,733 in Tools & Home Improvement #935 in HVAC Ducting | #3,887 in Tools & Home Improvement #7 in HVAC Ducting | #6,113 in Tools & Home Improvement #9 in HVAC Ducting |
| Recommended Uses For Product | Exhausting |
Canada on Aug 28, 2023