Model # SGM20

Internet #100092056

Store SKU #372522

Master Flow 20 in. Aluminum Gable Mount Automatic Shutter
0050206350409

Master Flow

20 in. Aluminum Gable Mount Automatic Shutter

  • Gable Mount Automatic Shutter
  • Use with Master Flow models PG2 and PG3
  • Aluminum construction
$44.45 /each

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Product Overview

Automatic 20 in. Power Gable Vent Shutter is designed to be used with Master Flow EGV/PG series electric gable fans. The shutter will open when the electric gable vent is operating. Constructed of white aluminum, that can be painted.

  • Use with all attic power gable mount vents
  • Moving air opens the louvers only when the power vent is operating
  • When vent is off, shutter helps prevent infiltration of rain, snow, insects, etc
  • Maintenance-free white aluminum construction (Can be painted)

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Customer Questions & Answers

5 Questions5 Answers

Customer Questions & Answers

20 in. Aluminum Gable Mount Automatic Shutter
20 in. Aluminum Gable Mount Automatic Shutter

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2 answers

Inside Mount?

This question is from 20 in. Aluminum Gable Mount Automatic Shutter
Asked by
Scarsdale NY
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November 7, 2015
Can I mount this inside of the attic, that is, upstream of the fan in terms of exhaust air flow. I have a 17" x 17" cut-out fan installed now with no louvers. Also, are there any other similar items to compare that are sold by Home Depot? Thanks.
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Answers (2)

Asked by
Redding ca
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August 23, 2016
Answer: 
no it mounts on the exterior only.
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November 9, 2015
Answer: 
Thank you for your interests in MasterFlow Products ... No, this item is design to be installed as an exterior wall vent. Please call Customer Care at 800-755-9392, M-F 8A-5P ET with any additional questions.
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1 answer

does this shutter come in smaller size

This question is from 20 in. Aluminum Gable Mount Automatic Shutter
Asked by
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October 28, 2016
does this shutter come in smaller size
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Answer (1)

October 30, 2016
Answer: 
Hello Bart! Thank you for your recent inquiry with The Home Depot. This shutter is not available in a smaller size online. For further assistance, please contact your local Home Depot store or an online representative at 800-430-3376. We appreciate your business and look forward to serving you in the future. Thank you for shopping Home Depot.
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1 answer

Which end of roof to mount?

This question is from 20 in. Aluminum Gable Mount Automatic Shutter
Asked by
New Mexico
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October 20, 2016
I have gable ends on the north and south walls. Which end would be best to mount the motor and thermostat? We get a lot of wind. Is there a way to force them closed in the winter?
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Answer (1)

Asked by
Redding ca
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October 20, 2016
Answer: 
If you have a prevailing wind from from one direction I would mount it on the opposite end but it really doesn't matter a lot. They automatically close when the fan is not on.
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1 answer

It seems to open easily with a breeze. Any suggestions? The online documentation says it only opens when the fan is on.

This question is from 20 in. Aluminum Gable Mount Automatic Shutter
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January 12, 2016
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Answer (1)

January 18, 2016
Answer: 
The vent is opened by air pressure produced from the fan when operating. When wind currents from outside the dwelling are sufficient to lift the vanes there is not any to prevent them from opening. Please call MasterFlow Technical Services at 800-211-9612, M-F 8A-5P ET with any additional questions.
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Customer Reviews

Rated 3.9 out of 5 by 18 reviewers.
Rated 5.0 out of 5.0 by Great For Another Use, Too We recently removed a low ceiling on my porch and wanted a finished look for the newly vaulted space inside. We had gable vents on the outside but wanted a great looking vent on the inside as well. The 20 inch Gable Mount fit the bill because the louvers are joined and operate together. This way we could simply prop them open in the summer and then close them in the winter. Perfect! June 27, 2016
Rated 4.0 out of 5.0 by Ok came with no screws also purchased recommend fan you would think frame for shutter would match up with fan no not a big deal just a observation I mounted it on small pieces of rubber just incase of noise works well no noise October 26, 2016
Rated 5.0 out of 5.0 by Excellent Product I needed a way to vent my shed, I checked all the shed stores and none could advise of one single product, so my son and I did a few basic measurements and headed off to Home Depot, with measurements in hand items to finish the job nd we quickly found the fan and gable end shutter, purchased all the necessary stuff to do the job. listed below is what we purchased, if you need to run a new drop for your fan. 1. 1 - 20ft 2/4 plain will do well. 2. 1 - box of 2 1/2 to 3 in wood screws, small box will do if you can find them. 3. 1 - tube of white exterior caulk 4. 1 - roll of romex in door wire. 5. 3 - tubes 3/4in conduit 6. 3 - 90 degree 3/4in Follow the instructions on the vent box and you should not have any problems. September 12, 2016
Rated 5.0 out of 5.0 by Exhaust shutter Better than pictured. Well made for price, ready to install. September 21, 2016
Rated 5.0 out of 5.0 by simple shutter This perfectly matched an existing shutter on my house. easy to install. August 23, 2016
Rated 5.0 out of 5.0 by Do It Yourself! Easy to install, First timers would have no problem with the installation,Great installation instructions, No Plastic! April 26, 2016
Rated 4.0 out of 5.0 by Great product...some concern This is a great shutter for the money and it was easy to install; just use the template provided. If you're using a saws-all instead of a jigsaw you may want to add 1/4" to the all four sides. Once installed, the shutter performed flawlessly. I had to build the 20 x 20 inside frame laying flat instead of laying on edge, (as pictured in instructions), because I was installing on T1-11. But the frame, (either way), is a necessary step in order to have a solid back to screw louver on to; plus it helps to keep out roaches. Regarding the shutter and its design to open and self-close upon the outflow air from the fan, I'm concerned that a sudden updraft from a rain storm could cause it to open (I live in central Florida) but this is only a concern at this point and it has not happened. In the event of an approaching hurricane, I would suggest purchasing or having a custom built waterproof and wind resistant enclosure (on hand) to cover the shutter completely. August 27, 2014
Rated 5.0 out of 5.0 by Excellent Works Perfectly Looks Great! I actually had someone install this for me because I am disabled but it works perfectly and looks fantastic and I believe is well made. August 21, 2013
  • 2016-10-30 T23:51:14.080-05:00
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