20" SPUN ALUMINUM ROOF VENT

$404.00

For natural gravity or positive pressure systems, model GRS 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.

30 x 30 inch base with prepunched mounting holes for easy attachment to roof curb
All aluminum exterior for corrosion-resistant construction
Integral birdscreen to prevent entry of birds and small objects

SKU: GRS20

Ships From: Dorse

Availability: In stock

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Product Specifications
Performance
Dimensional Drawing
Literature
Certifications

Dimension
A	30 in
B	35.5 in
C	11.25 in
D	3.75 in
E	20.25 in

Dimensions
Base/Panel Length X Width Square base dimension on power roof ventilators. Square fan panel dimension on sidewall propeller fans.	30 x 30 in
Curb Cap Size Square base dimension on power roof ventilators.Tells you what size roof curb is needed.	30 in
Base Height Height of the curb cap on power roof ventilators.	1 3/4 in
Base Top To Shroud Distance between the top of the curb cap to where the shroud begins on downblast power roof ventilators.	3 3/4 in
Base Top to Shroud Top Dimension from the top of the base to the top of the shroud on a downblast exhaust ventilator.	11 1/4 in
Damper Width x Damper Height The "ACTUAL" damper width and height. Dampers are undersized to allow them to be mounted into the duct work/wall opening.	18 x 18 in
Height The height of a given product.	11 1/4 in
Weight Weight	24 lbs
Overall Diameter Describes the diameter at the widest point for a given product.	35 1/2 in
Intake Area Intake Area	4.43 ft²
Throat Area Throat Area	2.25 ft²

Application
Application Applications/uses for a particular fan or ventilator.	Exhaust General and Clean Air Supply Air Exhaust General and Clean Air Supply Air
Mounting Location Refers to the location where a fan or ventilator can be mounted.	Roof

Construction Features
Mounting This describes the way a motor can be mounted.	Roof curb
Housing Material Type of material the housing of a ventilator is constructed of.	Spun Aluminum
Includes Describes items that a particular product includes such as mounting hardware, etc.	Birdscreen
Required Accessory Describes what accessory(s) must be purchased in addition to make the product fully functional.	Roof curb for new installations

General
Unit of Measure Unit of Measure	ea
Warranty Length Warranty Length	1 Year

Products specifications

Unit of Measure	ea
Application	Exhaust General and Clean Air, Supply Air
Mounting	Roof curb
Mounting Location	Roof
Base/Panel Length X Width	30 x 30 in
Housing Material	Spun Aluminum
Includes	Birdscreen
Warranty Length	1 Year
Required Accessory	Roof curb for new installations
Curb Cap Size
Base Height
Base Top To Shroud
Base Top to Shroud Top
Damper Width x Damper Height	18 x 18 in
Height
Weight
Overall Diameter
Intake Area
Throat Area

20" SPUN ALUMINUM ROOF VENT

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