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 if desired.

• Use with all gable-mount power attic vents
• Moving air opens the louvers only when the power vent is operating
• When vent is off, shutter helps in preventing infiltration of rain, snow, insects and many more
• Maintenance-free white aluminum construction