This Canarm Explosion-Proof, Single-Speed Exhaust Panel Fan is designed for industrial, commercial and farming applications with a sturdily constructed, direct drive, horizontal discharge design. Dimensions L x W x H in. 25 1/4 x 24 x 25 1/4, Air Delivery CFM 3,640, Dimensions L x H in. 25 1/4 x 25 1/4, Amps 6.6/3.1-3.3, HP 1/3, Depth in. 13 3/4, Needs to be Hardwired Yes, Volts 115/230, Fan Diameter in. 20. Durable powder-coated finish Heavy-duty OSHA motor mount/guard Totally enclosed 1/3 HP motor with overload protection Model Number: P20-4. Size: L. Age Group: Adult.