This economy make-up air unit is a non-motorized gravity vent.   It is an economical choice when a fresh air intake or pressure relief is needed.


Performance Data

Size CFM Against Static Resistance*
10" 750
12" 1000
14" 1475
18" 2400

* Approximate CFM against static resistance is based on a throat area velocity of approximately 1200 fpm.

Economy Make-Up Air Fans - No Motor

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