Master Flow® Foundation Vent ‑ Automatic ‑ FVRABL Specs

      Master Flow® Foundation Vent ‑ Automatic ‑ FVRABL Docs

      Master Flow® Foundation Vent ‑ Automatic ‑ FVRABL Videos

      Why Master Flow® Foundation Vent ‑ Automatic ‑ FVRABL?

      Automatic icon

      AUTOMATIC

      Automatically opens at 70°F (21°C) and closes at 40°F (4°C)
      Easy to Install icon

      EASY INSTALLATION

      Quick snap-in installation
      Better Protection icon

      BETTER PROTECTION

      Helps prevent foundation decay and lowers risk of frozen pipes

      Where to buy

      Find a GAF distributor near you.

      Find a contractor

      Find a GAF certified contractor near you.