Master Flow SGM20 Power Vent Automatic Shutter, White, Aluminum Autumn_Cleaning Finish:Hard Chrome

Finish:Hard Chrome

Large size

for easy drawer insertion

Non-Abrasive Polyethylene Material

Also use for trimming and edging landscapes

Master Flow SGM20 Power Vent Automatic Shutter, White, Aluminum Autumn_Cleaning Finish:Hard ChromeHighlights: 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