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RollSeal Rolling Dampers
Our patented RollSeal Shutter Systems offer the same advantages as our Doors and Sidewall Systems - No air flow restriction when open ... and no air leakage when closed.
Units are available in 24" 36" 48" and 52" models.
And also, since the RollSeal Shutter is completely out of the way when open, not only is there no restriction, but there is also no shutter to get clogged with dirt and debris; thus worsening the efficiency and performance of the fan.
Hired Hand, Inc | PO Box 110 | 1759 County Road 68 | Bremen, AL | (+1) (256) 287-1000