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
$3995 /each
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Product Overview

  • Gable Mount Automatic Shutter
  • Use with Master Flow models PG2 and PG3
  • Aluminum construction
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)

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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Price
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Name 8 in. Aluminum Turbine Base 20 in. Aluminum Gable Mount Automatic Shutter 8 in. Mill Finish Aluminum Internally Braced Wind Turbine
Brand Master Flow
Ratings (0) (42) (0)
Power Type Turbine Turbine Turbine
Wildlife Guard No No No
Ventilation Type Wind Turbine Other Wind Turbine
Material Aluminum Aluminum Aluminum
View Product View Product View Product

Specifications

Dimensions

Cut-Out Diameter (in.)
16.5
Product Depth (in.)
1.5
Product Height (in.)
19.25
Product Width (in.)
19.25

Details

Base Included
No
Color Family
White
Color/Finish Family
White
Material
Aluminum
Power Type
Turbine
Product Weight (lb.)
4lb
Recommended Sq. Ft.
0
Returnable
90-Day
Ventilation Type
Other
Wildlife Guard
No

Warranty / Certifications

Manufacturer Warranty
4-year Limited Warranty

Specifications

Dimensions

Cut-Out Diameter (in.)
16.5
Product Depth (in.)
1.5
Product Height (in.)
19.25
Product Width (in.)
19.25

Details

Base Included
No
Color Family
White
Color/Finish Family
White
Material
Aluminum
Power Type
Turbine
Product Weight (lb.)
4lb
Recommended Sq. Ft.
0
Returnable
90-Day
Ventilation Type
Other
Wildlife Guard
No

Warranty / Certifications

Manufacturer Warranty
4-year Limited Warranty

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Questions & Answers

can be installed horizontal in the cealing?

Asked by: LWBthere
no this shutter is closed by gravity has to be vertical there are some made for ceiling mounts did have one a while ago.
Answered by: jacques976
Date published: 2017-08-08

Can this be used in a whole house fan installation?

Can this be used in a whole house fan installation?
Asked by: Jeff
Yes, you sure use it with a whole house fan. You would need to put a few more vents on the cooler side. You can even put two vents on the hot side of the house, where the whole house fan is installed. They have many different vents that will look nice from the outside.
Answered by: MontanaGranny
Date published: 2017-07-12

What is the required flow for the vent to open? My fan is rated in CFM. Can I add a bug screen du...

What is the required flow for the vent to open? My fan is rated in CFM. Can I add a bug screen during the installation? Are the instructions online somewhere? Model No. Opening Dimensions Overall Dimensions SGM20 16 1/2" x 16 1/2" 19 1/4" x 19 1/4"
Asked by: tucsondon
yes you can add a bug screen but I think it will be hard with the way it opens, I used the gable attic fan they sell at home depot and it works so good
Answered by: tombo
Date published: 2017-07-05

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

Asked by: RAS
Put a small magnet or two on the bolts(will not stick anywhere else) holding the shutters on. On the outside of the vent.I used the two small magnets from the plastic clips.like you use on potato chip bag.
Answered by: tony
Date published: 2017-07-13
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Customer Reviews

20 in. Aluminum Gable Mount Automatic Shutter is rated 4.2 out of 5 by 42.
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 5 out of 5 by from it was simple to install, just had to cut out stucco with grinder with concrete blade, it was eas... it was simple to install, just had to cut out stucco with grinder with concrete blade, it was easy and quick, it opens good
Date published: 2017-07-03
Rated 5 out of 5 by from Like the all metal construction Like the all metal construction
Date published: 2017-07-04
Rated 5 out of 5 by from We have a "dutch colonial revival" house built in 1905 which has a "barn roof". Because of the b... We have a "dutch colonial revival" house built in 1905 which has a "barn roof". Because of the barn roof, the entire 2nd story is enclosed under the roof and therefore the heat absorbing roof shingles. On days with lots of sun, it was usually 20+ degrees hotter upstairs compared to downstairs. We noticed a BIG difference after installing the shutter along with a Master Flow 1450 CFM Power Gable Mount Attic Fan. I'll have to wait to compare electric bills with last year to see whether we will save any money on our electric bill using the fan plus air conditioner vs. just the air conditioner last year.
Date published: 2017-06-13
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 Look closely at the picture of the shutter. The mounting holes are elongated, perhaps 3/4" long.... Look closely at the picture of the shutter. The mounting holes are elongated, perhaps 3/4" long. No fastener is going to cover the entirety of the hole which means that rain is going to enter around your fastener. Because the metal is about 1/4" from the wall behind it, filling with caulk isn't going to work. Kinda disappointing that the manufacturer's one-size-fits-all attachment provision overlooks a real-world problem. Otherwise, the shutter is quite nice and does what it's supposed to do. Too bad it doesn't include a screen - another real-world consideration.
Date published: 2017-08-23
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 5 out of 5 by from I started to install solar attic fans and the company said that you should not use a louver shutt... I started to install solar attic fans and the company said that you should not use a louver shutter for the opening for exhaust. I chose this since it is aluminum I saw it in the store before I bought it. it has worked fine for the application.
Date published: 2017-08-08
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