About Master Flow™ Automatic Gable Shutter
The GAF Master Flow™ automatic 20 in. Power Gable Vent Shutter is designed to be used with GAF Master Flow™ EGV/PG series electric gable fans. The shutter vent will open when the electric gable vent is operating. Constructed of white aluminum, that can be painted.
Features & Benefits
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COMPATIBILITY
For Master Flow® and most popular brand gable mount power attic vents -
AUTOMATIC
Moving air opens the louvers only when the power vent is operating -
PROTECTION
When vent is off, shutter helps prevent infiltration of rain, snow, insects, etc