This Canarm Wall Exhaust Fan is an efficient, easy-to-install, low-maintenance solution for keeping room air fresh. Needs to be Hardwired: Yes, Fan Diameter (in.): 10, Air Delivery (CFM): 690, Speed (RPM): 1,600, Speeds (qty.): 2, Volts: 115, HP: 1/40, Amps: 0.5, Dimensions L x H (in.): 15 1/4 x 15 1/4, Dimensions L x W x H (in.): 15 1/4 x 10 x 15 1/4