Spun Aluminum Gravity Ventilator with Flashing Flange, Size 12, Model GRSF-12

For natural gravity or positive pressure systems, model GRSF offers excellent performance and durability for intake or relief applications. Featuring an exceptional low silhouette design and rugged construction this model is both efficient and economical. Features: All aluminum exterior for corrosion-resistant construction, Integral birdscreen to prevent entry of birds and small objects, Built-in flashing flange with prepunched mounting holes for quick and easy installations without a roof curb
Availability:  5 in Troy
SKU: GRSF-12
$428.00

For use with fan sizesĀ 780-1050.

Products specifications
Attribute name Attribute value
Base/Panel Length X Width 22 x 22 in
Base Height 1 3/4 in
Base Top To Shroud 3 1/2 in
Base Top to Shroud Top 10 in
Damper Width x Damper Height 12 x 12 in
Height 10 in
Weight 10 lbs
Overall Diameter 29 in
Intake Area 2.52 ft²
Throat Area 0.82 ft²
Mounting Location Roof
Mounting Flashing flange
Housing Material Spun Aluminum
Warranty Length 1 Year