With this 48in. unit, Port-a-Cool has developed their biggest unit with the highest cooling capacity. A 1 HP, two-speed motor produces an amazing 20,000 CFM for an impressive air output. A low-water shut-off protects the pump if the unit should run out of water. Using the process of evaporation, this fan will cool the air up to 30F in all your hard-to-cool areas. One-piece Roto-molded polyethylene housing will not crack, leak and is durable for any warehouse or commercial environment. Unit employs KUUL pads rigid evaporative cooling media, offering the longest life and most efficient pad on the market. Made in U.S.A. Air Delivery CFM 11,000/20,000, Air Velocity MPH 12.2, Amps 8.7 Motor 5 Pump, Cooling Distance ft. 63, Fan Diameter in. 48, Garden Hose Attachment Yes, HP 1 motor 1/6 pump, Cooling Capacity sq. ft. 4,000, Speeds qty. 2, Volts 115, Water Reservoir gal. 40, Watts 1,000, Oscillates deg. 0, Power Cord ft. 13, Cooling Temperature deg. Up to 30, Dimensions W x D x H in. 86 x 36 x 74. Cools up to 4,000 sq. ft. 40-gal. water reservoir with up to 4 hours runtime 1 HP, two-speed motor produces 20,000 CFM Low-water shut-off protects pump Cools air up to 30F in hard-to-cool areas, using evaporation Durable roto-molded polyethylene housing will not crack and leak KUUL pads rigid evaporative cooling media offer the longest life and most efficient pad on the market Overall 86in.W x 36in.D x 74in.H. Model Number: PAC2K482S. UPC: 614288482023.