Master Flow SGM20 Power Vent Automatic Shutter, White, Aluminum Autumn_Cleaning Included in the box: Designed

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

for easy drawer insertion

Non-Abrasive Polyethylene Material

Frequency Rating : Voltage and AmpTip™ current: 50/60 Hz

Finish:Hard Chrome

Master Flow SGM20 Power Vent Automatic Shutter, White, Aluminum Autumn_Cleaning Included in the box: DesignedHighlights: 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