The Port-A-Cool Pro 48” Two-Speed Evaporative Cooler, No. PAC2K482S, utilizes high-efficiency cooling media and water to naturally cool up to 4,000 sq. ft. and lower temperatures as much as 30 degrees F. The unit provides 20,000 cfm airflow delivery and features a water reservoir capacity of 40 gallons. Requiring only 12 amps, the 48” unit provides an economical, efficient cooling solution. It has a durable one-piece molded polyethylene housing that is rust-free and leak-proof. Heavy duty casters provide easy rolling portability. The cooler is available in black, weighs 345 lbs and is 86” high by 74” wide by 36” deep. The unit ships completely assembled.