 Exhaust Fan Curbs
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CRB42.5X12E
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ROOF CURB - 42.50" Square X 12" High.
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CRB42.5x20E
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ROOF CURB - 42-1/2" sq. x 20" high.
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CRB42.5x26E
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ROOF CURB - 42-1/2" sq. x 26" high
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Exhaust Fan Motorized Dampers
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I 39 BDD w/ 24V Motor
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MOTORIZED BACKDRAFT DAMPER - with flange, damper is 39" sq., 2" deep, O.D. of flange is 41" sq. Actuator is 24V
For the BDU36, BDCR36
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