Fiberglass Square Gravity Relief & Intake Ventilator
The MA Gravity Relief Ventilator is designed for providing relief for positive pressure, gravity exhaust of heat and smoke, or air intake supply. The MA is molded of tough, chemical resistant polyester resins and heavy-weave glass cloth.
Sizes (square throat sizes)
6 to 60 inches (152 mm to 1,524 mm)
Airflow to 40,000 CFM (67,960 m3/hour)
Static pressure to 1 inch w.g. (248 Pa)