GAF MasterFlow Automatic Shutter for Power Gable Vent, Aluminum Cutoff Wheel Easy Installation: Pre-attached components streamline

Easy Installation: Pre-attached components streamline setup

Strokes per Minute 0–3000 SPM Tool Weight 6

choose one that suits your moisture and sound needs

code‑ready ceiling that installs fast and lasts long

GAF MasterFlow Automatic Shutter for Power Gable Vent, Aluminum Cutoff Wheel Easy Installation: Pre-attached components streamlineMasterFlow Automatic Gable Vent Shutter Automatic shutter for MasterFlow power gable vents that opens when the fan runs and closes when off. Aluminum construction helps block rain, snow, and insects from entering the attic. Key Features: Automatic Operation: Louvers open with fan operation and close when off to help block backdrafts Weather and Pest Protection: Helps prevent rain, snow, and insect infiltration into the attic Durable Construction: Made