Heating, Cooling & Ventilation

Rough Opening Size : 24 In L X 18 In W
Material : Aluminum
Color : White
Length : 26-3/8 In
Width : 20-1/2 In

Net Free Ventilating Area : 211 To 439 Sq-in
Installation Type : Roof
Material : Aluminum
Suitable For : Sheds, Knee Walls
Finish : Mill

Net Free Ventilating Area : 60 Sq-in
Material : Aluminum
Color : Brown
Overall Width : 16-5/8 In
Overall Height : 4 In

Net Free Ventilating Area : 21 Sq-in
Rough Opening Size : 7-3/4 In L X 8-1/2 In W
Material : Polypropylene
Color : White
Length : 10.12 In
Width : 10.855 In

Net Free Ventilating Area : 144 Sq-in
Material : Aluminum
Color : Mill
Overall Width : 20 In
Overall Height : 7-3/4 In

Net Free Ventilating Area : 1.735 Sq-in
Material : Aluminum
Color : Brown
Width : 3-17/32

Net Free Ventilating Area : 61 Sq-in
Material : Aluminum
Color : White
Length : 8 Ft
Width : 2 In

Net Free Ventilating Area : 12.7 Sq-in
Roof Pitch : 3/12 To 20/12
Material : HDPE
Color : Black
Length : 4 Ft
Width : 11-1/4 In
Suitable For : Asphalt Shingles, Cedar Shakes, Flat Tile, Metal And Stone Coated Steel

Net Free Ventilating Area : 44 Sq-in
Roof Pitch : 2/12
Color : Black
Length : 4 Ft
Width : 9 In

Net Free Ventilating Area : 50 Sq-in
Material : Steel
Finish : Galvanized
Color : Weathered Bronze
Overall Width : 16 In
Overall Height : 5 In

Net Free Ventilating Area : 1.21 Sq-in
Material : Aluminum
Finish : Mill
Width : 2.907

Net Free Ventilating Area : 15 Sq-in
Material : Plastic
Color : Black
Overall Length : 48 In
Overall Width : 14 In

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 : 18 Sq-in/ft
Roof Pitch : 3
Material : Polypropylene
Color : Black
Length : 4 Ft
Width : 13.7 In
Suitable For : Roof Ridge

Net Free Ventilating Area : 14.1 Sq-in/ft
Roof Pitch : 2
Material : Composite Fiber
Color : Black
Length : 20 Ft
Width : 10-1/2 In
Suitable For : Roof Ridge
Includes : Hand Nails

Overall Height : 17-5/8 In
Throat Diameter : 12 In
Color : Black
Material : Aluminum
Bracing Type : External
Roof Pitch : 12/12
Air Flow Rate : 110 Mph
Base Size : 20 X 20 In

Net Free Ventilating Area : 117 Sq-in
Material : Polypropylene
Color : Brown
Overall Width : 18-3/8 In
Overall Height : 4-5/8 In

Net Free Ventilating Area : 75 Sq-in
Material : Polypropylene
Color : Translucent
Overall Width : 19.44 In
Overall Height : 4.96 In

Net Free Ventilating Area : 65 Sq-ft
Material : Aluminum
Color : Brown
Length : 8 In
Width : 16 In

Net Free Ventilating Area : 21-1/2 Sq-in/ft
Roof Pitch : 3
Material : Aluminum
Color : White
Length : 10 Ft
Width : 7-1/2 In

Net Free Ventilating Area : 2.74 Sq-in
Material : Polypropylene
Color : White

Net Free Ventilating Area : 60 Sq-in
Material : Aluminum
Color : Black
Overall Width : 16-5/8 In
Overall Height : 4 In

Net Free Ventilating Area : 24 Sq-ft
Material : Aluminum
Color : Brown

Material : Galvanized Steel
Color : Black
Width : 14-3/4 In
Includes : Damper