Net Free Ventilating Area : 58 Sq-in Rough Opening Size : 17 In L X 17 In W Material : Polypropylene Color : White Length : 21-7/8 In Width : 21-7/8 In Suitable For : Molded-In Screen
Net Free Ventilating Area : 12.7 Sq-in Roof Pitch : 3/12 To 20/12 Material : HDPE Color : Black Length : 20 Ft Width : 11-1/4 In Suitable For : Asphalt Shingles, Cedar Shakes, Flat Tile, Metal And Stone Coated Steel
Overall Height : 17-5/8 In Throat Diameter : 12 In Material : Aluminum Bracing Type : External Roof Pitch : 12/12 Air Flow Rate : 110 Mph Base Size : 20 X 20 In
Voltage Rating : 120 V Air Flow Rate : 4500 Cfm Material : Aluminum Finish : White Dimensions : 5 In W X 27-3/4 In D X 27-3/4 In H Includes : Seal-Tite White Aluminum Ceiling Shutter, Plenum Boards And Easy-to-Follow DIYer Instructions
Voltage Rating : 120 V Air Flow Rate : 6000 Cfm Material : Aluminum Finish : Metallic Dimensions : 11 In W X 34 In D X 34 In H Includes : Seal-Tite White Aluminum Ceiling Shutter, Plenum Boards And Easy-to-Follow DIYer Instructions
Power Supply : 120 V Speed Rating : 1100 Rpm Material : Aluminum Color : Brown Installation Type : Roof Suitable For : Existing Vent To Add Powered Ventilation To A Cable
Net Free Ventilating Area : 90 Sq-ft Rough Opening Size : 18 In L X 12 In W Material : Aluminum Finish : Mill Color : Silver Length : 20-1/2 In Width : 14-1/2 In Height : 2 In
Speed Rating : 1100 Rpm Installation Type : Roof Color : Black Material : Aluminum Power Supply : 120 V Suitable For : Existing Vent To Add Powered Ventilation To A Gable