0050206350409

Master Flow

Model SGM20

Internet #100092056

Store SKU #372522

20 in. Aluminum Gable Mount Automatic Shutter

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

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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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Warranty / Certifications

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Customer Questions & Answers

2 Questions3 Answers

Customer Questions & Answers

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

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This question is from 20 in. Aluminum Gable Mount Automatic Shutter
 
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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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This question is from 20 in. Aluminum Gable Mount Automatic Shutter
 
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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 3.7 out of 5 by 15 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 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
Rated 5.0 out of 5.0 by very nice This item was super easy to install. Almost so easy I got confused thinking it couldn't be that easy. on the box is a cut out template. Tape it, level it, draw the lines, cut the wall, and screw the vent into place. That easy. June 18, 2014
Rated 4.0 out of 5.0 by 20" Power Gable Vent Shutter This product is a fair product for the price. However, be aware that the rough opening for this product is 16.5" X 16.5" and not the 15.25" x 15.25 " stated in the product specifications that are listed on line. Also be aware that if there is any natural draft through this product that the louvers will open. This happens as they are not very heavy and only close by thier own weight and gravity. Any time there is a slight positve pressure on the back side of these louvers they will open. May 27, 2009
Rated 1.0 out of 5.0 by Obnoxiously Loud Banging I moved into a house 3 years ago with this vent and the GAF fan. The vent faces west and anytime any wind comes off the mountain this vent bangs. Interrupts sleeping and no easy replacement found to eliminate this issue. GAF needs to construct a similar one with noise-dampening. I have the same issue with the fan vent levers too. They now rattle and make a horrendous noise whenever I turn the fan on. Hardly ever use it due to the racket it makes. KH Lakewood, CO March 23, 2012
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