All units come standard with 115V, 2 stage bypass motors that produces 80" of waterlift and 115 CFM on the 12 gallon model and 84" of waterlift and 120 CFM on the 17 gallon model. All models come standard with a cartridge filter that allows simultaneous wet/dry recovery. Constructed of rugged rotationally molded polyethylene, these units provide the performance and durability professionals have come to expect from Tornado®. 18" L x 17" W x 30" H. 115V 2-Stage Bypass Motor.