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    Spun Aluminum Gravity Ventilator, Product # GRS-30-QD

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    Spun Aluminum Gravity Ventilator, Product # GRS-30-QD

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    Max CFM Intake
    CFM

    Intake Area
    7.49 ft²

    Diameter
    48 in

    • 40 x 40 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

    • Shipping Type:
      Freight
    $1,120.30
    In stock 
    3 on Hand
    Free shipping
    Select
    OR
    Need a specific configuration?
    Submit a request online and get a quote from your local representative within 4 hours.
    Request A quote

    Max CFM Intake
    CFM

    Intake Area
    7.49 ft²

    Diameter
    48 in

    • 40 x 40 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

    • Shipping Type:
      Freight

    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.

    California Residents-

    Prop 65 Warning
    Specifications
    Base/Panel Length X Width
    40 x 40 in
    Curb Cap Size
    40 in
    Base Height
    1 3/4 in
    Base Top To Shroud
    5 7/16 in
    Base Top to Shroud Top
    18 3/4 in
    Damper Width x Damper Height
    30 x 30 in
    Height
    18 3/4 in
    Weight
    35 lbs
    Overall Diameter
    48 in
    Throat Area
    5.03 ft²
    Intake Area
    7.49 ft²
    Application
    Exhaust General and Clean Air
    Supply Air
    Housing Material
    Spun Aluminum
    Includes
    Birdscreen
    Required Accessory
    Roof curb for new installations
    Shipping Type
    Freight
    Warranty Length
    1 Year
    Performance
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