AirFlo-NA Roof Exhaust Fan 30 inch 10440 CFM Direct Drive NAL30-D-1-T

Designed for general ventilation and smoke and fume removal where lower cost and less maintenance are a priority.

FEATURES
Ruggedly constructed steel curb cap including spun venture section for efficient air flow
Cast aluminum spark-resistant propellers are standard and suitable for use in hazardous locations.
Butterfly damper section, mill galvanized construction, with damper blades that open when fan is energized and close weather tight when unit is off. Dampers rotate in nylon bearings on a stainless steel axle.

CURB DIMENSIONS
O.D. = 43.5" sq.
I.D. = 40.5" sq.
MIN. ROOF HOLE SIZE = 40" sq.

ROOF CURB NOTE
1. Standard Curb Base for roof Ventilator: Insulated, 8" High with Wood Nailer
2. NOT for Installation on Corrugated roofing or Standing Seam Roofs