Master Flow® Automatic Shutter ‑ SGM20 Specs

      Master Flow® Automatic Shutter ‑ SGM20 Docs

      Master Flow® Automatic Shutter ‑ SGM20 Videos

      Complemenary
      Compatibility
      For Master Flow® and most popular brand gable mount power attic vents
      Automatic
      AUTOMATIC
      Moving air opens the louvers only when the power vent is operating
      Protection
      PROTECTION
      When vent is off, shutter helps prevent infiltration of rain, snow, insects, etc

      Where to buy

      Find a GAF distributor near you.

      Find a contractor

      Find a GAF certified contractor near you.