Master Flow SGM20 Power Vent Automatic Shutter, White, Aluminum Autumn_Cleaning Great for construction and commercial

Great for construction and commercial use

this mole trap should be placed into the tunnel with the tunnel portion beneath the trigger pan partially blocked

Included in the box: Designed to withstand even the toughest outdoor weather and features a small and accurate control box

Large size

Master Flow SGM20 Power Vent Automatic Shutter, White, Aluminum Autumn_Cleaning Great for construction and commercialHighlights: Color: White Height: 20. 5 in Material: Aluminum Rough Opening Size: 16 1 2 in L x 16 1 2 in W Suitable for: All Gable Mount Power Attic Vents Width: 19 1 4 in 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