This Broan Steel Black Wall Cap for Broan 6 in. Round Ducts vents an exhaust fan or range hood with a 6 in. duct to the outdoors. Using its back draft damper helps it to prevent undesirable air backflow. The protective bird screen helps to prevent small pests from entering the duct.
For any questions regarding product features, installation, or specifications, please call our Technical Services Dept. at 800-637-1453, Monday-Friday, 8:00 am - 7:00 pm EST.
Q:The attachment collar of the 843BL is 1-1/4" long and curves slightly inward at its end. At first glance, this does not look like much to attain a firm connection to.
What is the best method to attach the duct to this collar?
by|Feb 17, 2023
1 Answer
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A: Hi CBN23,
Thank you for your question on the 843BL wall cap. We recommend sliding the duct over and securing with duct tape.
by|Feb 20, 2023
Q:I am using a 6" exhaust and venting my hood range through a corrugated tin wall with distance of 7" between ribs. The 843BL height is fine but I need something to fit this 7" range. Is there another model that would help with this?
by|Feb 12, 2023
1 Answer
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A: Hi Pawpaw,
Thank you for your question on the 843BL wall cap. Unfortunately, we do not offer another wall cap with longer depth for your application.
by|Feb 13, 2023
Q:What is the minimum CFM needed to open the spring loaded damper? I plan on using the the vent above my range. Thanks.
by|Dec 19, 2022
1 Answer
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A: Hi TonyB, Thank you for your question on model 843BL. There is no specific CDM level rated for this wall cap. This model is designed for any fan with a 6" duct size and the cfm's that come with this size duct should adequately open the damper.
by|Dec 20, 2022
Q:Will a 6? hole saw cut the right size hole or does it need to be slightly larger?
by|Aug 14, 2022
4 Answers
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A: I would think so but I traced the hole size from the vent and then cut it out with a sawzall
by|Aug 21, 2022
A: We used a 6 3/8" hole saw
by|Aug 26, 2022
1 found this answer helpful
A: Hi cone,
Thank you for your question on the model 843BL wall cap. The collar on the cap is 6", so we would recommend you cut the hole slightly larger. Please contact Technical Support directly for more assistance at 888-336-6151.
by|Aug 19, 2022
A: Hole size should be about 6 1/4”. The neck on the damper is sized to have a 6” pipe fit inside the neck of the damper.
by|Aug 26, 2022
1 found this answer helpful
Showing 1-4 of 27
Customer Reviews
4.7 out of 5
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Showing 1-10 of 95 reviews
Oct 11, 2020
Solidly built, tough finish
I haven't installed this yet.
This is not a flimsy vent cap - it would take some serious force to dent. The screen is 1/4" mesh, also fairly sturdy, and mounted inside the external opening.
The damper is spring-loaded, and closes against a foam strip so it shouldn't make much noise when closing. It's not clear what CFM is required to push open the damper, but it's not difficult to do so when I try blowing on it.
by
Recommended
4 found this review helpful
May 26, 2019
heavy duty
this vent cover is great. easy to install and built tough.
by
Recommended
Feb 26, 2023
Quality construction, nice weatherstrip seal on flapper so it is...
Quality construction, nice weatherstrip seal on flapper so it is quiet
by
Verified Purchase
Feb 17, 2023
Great quality, I have installed many of these for kitchen...
Great quality, I have installed many of these for kitchen exhaust hoods and vents. This is by far the most well put together with the internal spring-loaded door. It all but eliminates the noise made from the wind. Highly recommend.
by
Verified Purchase
Sep 8, 2022
Rating provided by a verified purchaser...
Rating provided by a verified purchaser
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Verified Purchase
Sep 4, 2022
This exterior range vent is made to withstand the elements...
This exterior range vent is made to withstand the elements throughout the year. A heavier guage metal is used, just like the ones of years past. Quality is what makes this product worth purchasing.
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Verified Purchase
Aug 24, 2022
Solid construction. Spring closes slowly and quiet. Very...
Solid construction. Spring closes slowly and quiet. Very pleased with this vent. Wish it had a female 6 in connection but was able to make it work with a coupler.
by
Verified Purchase
Jun 1, 2022
Doesn’t fit a 6 inch duct. Not the crimped side...
Doesn’t fit a 6 inch duct. Not the crimped side or the straight side. Doesn’t fit 6” flexible duct either.
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Response from NuToneCustomerSupportJun 3, 2022
Hi COLIN, We are sorry to learn of your issue with the 843BL and the installation. Please contact our Technical Support team directly for installation assistance at 888-336-6151.
Verified Purchase
May 12, 2022
This was exactly what we were looking for. It fitted...
This was exactly what we were looking for. It fitted exactly into the space we had and matches our appliances