These evaporative coolers are sealed to prevent sparking and accidental explosion in highly combustible areas. Swamp coolers help increase worker productivity by making a more comfortable and safe working environment. Durable one-piece molded plastic polyethylene housing with leak-resistant, one-piece molded plastic internal water tank. Water supplied to internal tank through standard 3/4" hose. Energy efficient variable speed belt drive motor and pump. These portable evaporative coolers include swivel casters for easy mobility. Hazardous Location protection for Class 1, Division 1, Groups C & D. 36 Evaporative Cooler features a 20 gallon water tank, 1/2HP motor and delivers 9,600 CFM. Provides a cooling area of up to 2,500 sq. ft. 48 Evaporative Cooler includes a 1HP motor that delivers up to 20,000 CFM with a cooling area capacity up to 4,000 sq. ft. Includes a 25 gallon water tank.
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