Happy Holidays! Greenheck will be closed on December 24, 25, 31 and January 1. Any stock orders placed on those days will ship the following business day.

  DETAILS
Shipping Cutoff Times
Shipping Type Order By
Standard Ground Small Parcel
FREE - On orders over $25 View Transit Map 		7:00 PM CST
Next Day Air
(Calculated at checkout) 		3:00 PM CST
Standard Ground Freight
FREE - On orders over $25 		1:00 PM CST
  • Shipping cutoff times apply to in-stock items. Please note item lead-times when placing your order.
  • Orders placed on weekends or holidays will be processed the next business day.
Questions? Give us a call at 1-800-355-5354
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    Spun Aluminum Gravity Ventilator, Size 20

    Greenheck Product # GRS-20
    Model GRS is an aluminum ventilator designed to be used as an intake or relief unit on natural gravity or negative pressure systems. The GRS has a curb cap and requires a roof curb for installation.

    Product Variants

    Showing 1 of 1
    SKU BASE/PANEL LENGTH x WIDTH THROAT AREA INTAKE AREA PRICE LEAD TIME
    GRS-20-QD
    Model: GRS
    Model / Size: GRS-20
    		30 x 30 in 2.25 ft² 4.43 ft² $481.41
    25 Days
    Lead Time 

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