Model # 433

Internet #203481754

Broan 16.75 in. x 16.75 in. Aluminum Automatic Gable Square Mount Louvered Shutter Attic Vent
0026715000517

Broan

16.75 in. x 16.75 in. Aluminum Automatic Gable Square Mount Louvered Shutter Attic Vent

$49.42 /each

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Product Overview

The Broan model 433 automatic shutter is the perfect accessory to Broan gable mount powered attic ventilators, provided you have adequate air intake on the opposite side of the attic or the in the eaves. Attic ventilation is critical to making any home more comfortable while helping to lower energy costs. Stagnant air can be removed, drawing fresh air across the surfaces. The home ventilating institute recommends at least one square foot of open air inlets for each 300 CFM of ventilator capacity.

  • Counter-balanced aluminum vanes open and close automatically with operation of fan
  • Steel reinforced for strength and durability
  • Weather-tight louvers keep attic dry year-round
  • Complete, easy-to-follow instructions for easy installation

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Customer Questions & Answers

12 Questions19 Answers

Customer Questions & Answers

16.75 in. x 16.75 in. Aluminum Automatic Gable Square Mount Louvered Shutter Attic Vent
16.75 in. x 16.75 in. Aluminum Automatic Gable Square Mount Louvered Shutter Attic Vent

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4 answers

Do the louvers operate independently or are they joined with some kind of metal wire device?

This question is from 16.75 in. x 16.75 in. Aluminum Automatic Gable Square Mount Louvered Shutter Attic Vent
Asked by
Redding CT
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April 19, 2016
Do the louvers operate independently or are they joined with some kind of metal wire device? I'd be using these in an unconventional way, on a porch, is why I ask. I'd love it if the louvers were rigged to all work together so I could manually open and close the vents.
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Answers (4)

Asked by
Miami
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Home Improvement Profile: Other
October 10, 2016
Answer: 
.
I bought this window at Home Depot and had to return it because the louvers open independent, while that NUTONE said that the Model 433 are joined together.
Even I called NUTONE (1-800-558-1711) and they informed me that do not have any model in the louvers are together.
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Asked by
Miami
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Home Improvement Profile: Other
October 10, 2016
Answer: 
I bought this window at Home Depot and had to return it because the blinds open independent, while that NUTONE said that the Model 433 are joined blinds.
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Asked by
Redding CT
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Home Improvement Profile: DIYer
April 25, 2016
Answer: 
Actually, the louvers are NOT joined together and, in fact, operate independently. Thanks to the WRONG answer I got to this question I ordered two of these and now have to return them. Thanks a lot.
Par for the course.
I ordered a window from Home Depot a month ago. Two weeks later it came in broken. They said they'd "rush" out another one. I'm still waiting.
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April 20, 2016
Answer: 
The louvers on the 433 are joined together.
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3 answers

Hello, how big will the CUT OUT hole be for this vent?

This question is from 16.75 in. x 16.75 in. Aluminum Automatic Gable Square Mount Louvered Shutter Attic Vent
Asked by
Jarred
September 12, 2012
Product #433 Broan louver
says its 16.75in x 16.75in... i just wanna make sure that when I cut my hole into the side of my house
that I dont cut it to big and the louver just falls through the hole. So i need to know the size of the CUT HOLE in order to make sure the the edges can be screwed down. Thanks
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Answers (3)

Asked by
Louisiana, USA
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January 28, 2014
Answer: 
The vent is about 1/2" smaller than the rough-in size, depending on the type of siding you have and whether you intend to put trim around it, the size in the instructions may work for you. If you only want to run a bead of chalk around it when finished, I would go with 16.5"x 16.5". I made my opening prior to receiving the vent, used James Hardie plank siding, and put a small trim piece around the vent Read More
The vent is about 1/2" smaller than the rough-in size, depending on the type of siding you have and whether you intend to put trim around it, the size in the instructions may work for you. If you only want to run a bead of chalk around it when finished, I would go with 16.5"x 16.5". I made my opening prior to receiving the vent, used James Hardie plank siding, and put a small trim piece around the vent and butted the trim to the siding. Read Less
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Asked by
minnesota
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January 1, 2013
Answer: 
that 16 inch number is with the insulation I think. The pipe is only 12inches. remember this when your cutting the pipe hole
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September 13, 2012
Answer: 
Unfortunately, there is not an easy answer to your question. The installation of this item is more involved than simply cutting a hole and inserting the louver. Please contact customer service at 888-336-6146 and they can email you the complete installation instructions for this item.
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2 answers

Do the louvers go inwards to the attic?

This question is from 16.75 in. x 16.75 in. Aluminum Automatic Gable Square Mount Louvered Shutter Attic Vent
Asked by
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June 11, 2016
Is this an intake vent and do you have it in a 12"x12" or 14"x14"
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June 13, 2016
Answer: 
Thank you for your questions. The louvers open outwards (to the outside). This is not an intake vent. This would be used with a cable fan that moves air out when in operation. While air is needed inside, this is not the intake. To be sure that your questions are properly answered, I would encourage you to contact our Technical Support Department at 888-336-6151 and speak with them directly. Thank Read More
Thank you for your questions. The louvers open outwards (to the outside). This is not an intake vent. This would be used with a cable fan that moves air out when in operation. While air is needed inside, this is not the intake. To be sure that your questions are properly answered, I would encourage you to contact our Technical Support Department at 888-336-6151 and speak with them directly. Thank you. Read Less
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June 12, 2016
Answer: 
The full installation instructions will be included and are also available on the products page.
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2 answers

Can I mount this like a gable vent, in that it will open when I turn on my whole house fan?

This question is from 16.75 in. x 16.75 in. Aluminum Automatic Gable Square Mount Louvered Shutter Attic Vent
Asked by
Sacramento, CA
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April 19, 2015
In other words, I want to use it without any ducting, or a dedicated fan to blow it open, just as an attic vent, mounted in a gable, to open when the whole house fan turns on. Thanks!
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Answers (2)

April 20, 2015
Answer: 
Yes, this vent does not need to be connected to a duct.
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April 20, 2015
Answer: 
This unit can be installed for the application you’ve described, however, there probably won’t be enough air flow past the vent to open it when your whole house fan is turned on. If you have any further questions, please contact the Nutone Technical Support Department at 1-888-336-6151.
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Customer Reviews

Rated 3.9 out of 5 by 12 reviewers.
Rated 1.0 out of 5.0 by Poor quality Purchased for a shop squirrel cage fan. Unit has a fairly stout frame but needs to be sealed at corners and particularly at bottom or it will leak if exposed to weather. Frame also comes with pre-punched mounting holes that are ridiculously large, 1/4" x 1/2". This is larger than any pan head screws available at HD. Unit shipped to me had one vane that would not close completely and could not be completely fixed because one pivot end pin (which are friction fit and can not be removed) was not put in straight. My biggest objection is the vanes themselves are very flimsy. All vanes came fairly straight at top but all had curve at bottom which meant none close very well, with a gap in middle from 1/8" to 1/2". This unit will not keep out blowing snow or driving rain and should be re-designed and subject to better quality control. September 13, 2016
Rated 2.0 out of 5.0 by Gable mounted louvered shutter This unit seemed to be very well built but after further inspection and installation I found it to be flimsy. I feel it could have been a bit more sturdy. After installation, which was done per instructions, I found that it doesn't close properly, the aluminum shutters are just too light in construction to weigh themselves closed when fan is not operated. August 9, 2016
Rated 4.0 out of 5.0 by EXHAUST LOUVER Installed with attic exhaust fan to relieve heat from my garage. Seems flimsy but when installed correctly everything tightens up. Functions as designed. 20 degrees cooler in garage. July 12, 2016
Rated 5.0 out of 5.0 by Louvered shutter I installed this along with a new fan in my garage roof gable. Works alot better than the fixed vent I had. I would like to do the same to the house gable vent but I am concerned about birds and squirrels being able to gain access to the attic so I would add a wire screen to it. July 19, 2016
Rated 5.0 out of 5.0 by attic vent what needed to fit over fan. Lowes couldn't get to fit. and it came in three days. July 12, 2016
Rated 5.0 out of 5.0 by Louvered Attic Vent This was a good size for us to use with the attic fan installed. Happy it worked out, since we bought it through the website. Shipping took about a week. No complaints. October 2, 2014
Rated 3.0 out of 5.0 by Good product. Works well. But, not perfect Product works well and is easy to install. Louvers are light weight, so the air from my attic fan easily opens them. They also close quietly, again because they are light. All is aluminum, so they won't rust. My biggest problem was that the aluminum frame did not meet soundly in the mitered corners. There was a gap on each corner that would allow water to infiltrate if the vent is mounted so it is exposed to wind and rain. I used angle aluminum screwed on the outside of each corner to narrow the gap, then caulking to seal them. In the end it seems fine, but did require extra, unexpected effort. July 8, 2014
Rated 4.0 out of 5.0 by Go-To shutter There is another "big-box store" that offers a product at a similar price...except their's is plastic and does not last. I know....I've gone through 3 of them and then I found this one. I would have rated it as "excellent" except that one of the vanes was dislodged in shipping, but was easily repaired. October 10, 2014
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