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
$4445 /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 Reviews

20 in. Aluminum Gable Mount Automatic Shutter is rated 3.9 out of 5 by 26.
Rated 1 out of 5 by from There is nothing 20" about this unit. This is a SIXTEEN INCH louver. Even if you include the fl... There is nothing 20" about this unit. This is a SIXTEEN INCH louver. Even if you include the flange, it is only 19"!
Date published: 2017-01-26
Rated 3 out of 5 by from I installed this shutter to increase the effectiveness of the thermostatically controlled gable v... I installed this shutter to increase the effectiveness of the thermostatically controlled gable vent fan. With the shutter installed the attic seems to be getting better airflow. My overall rating is "average" because the shutter has no insect screening. The shutters have weather seals on the bottom edges; but its obvious bugs or birds could find a way in or around. I fabricated a screen box which mounts on the outside. The screen cleared the shutters with the fan running; but apparently wind gusts caused the shutter to open a bit wider and the shutters hang on the screen. I'll have to make the screen box about an inch deeper and everything should be good. Be advised: Look at the instructions on the back of the box. There will be some framing involved to install this product.
Date published: 2017-05-03
Rated 4 out of 5 by from The Automatic Shutter works as it should, is very well made and installed in my two story Yard Ba... The Automatic Shutter works as it should, is very well made and installed in my two story Yard Barn keeps the attic much cooler than without it when used with an automatic exhaust fan. I would have given it 5 stars except I feel it should have included a screen to prevent insects from getting inside. Not a problem when the fan in running, but when it's off and there is a breeze, the shutters sometimes open on their own. Overall I like it very much and would buy it again.
Date published: 2017-05-17
Rated 4 out of 5 by from Good quality Built well and easy to install. As another poster mentioned the shutters can flop around in the breeze. I do not hear it inside though. Might hang a small weight on the joining bar in the winter to avoid this.
Date published: 2017-04-11
Rated 5 out of 5 by from it works much better than the plastic one that I had. The plastic one fell apart in less than a ... it works much better than the plastic one that I had. The plastic one fell apart in less than a year, hopefully this one will last for many years, seams sturdy, and well built.
Date published: 2017-03-30
Rated 4 out of 5 by from 4 Star Review Rating provided by a verified purchaser
Date published: 2017-05-05
Rated 5 out of 5 by from just as described just as described
Date published: 2017-01-18
Rated 5 out of 5 by from Works excellent Works excellent
Date published: 2017-05-13
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