Lightweight, rugged and versatile ship-board ventilator for degassing or fresh air supply. *Delivers 4,870 cfm (8,274 m3/h) operating with 100 psig compressed air. *Spark resistant, corrosion resistant powder coated aluminium construction. Ideal for hazardous locations. *Weight on 32 lbs (15 kgs) *Mates with 122 (320 mm) Butterworth deck openings in either supply or exhaust set-up. *Built-in flange on outlet end accepts 12" flexible duct.