For open tank mounting Input speed: 1200/900 rpm Output speed: 125/94 rpm 50/28.1 HP, 3/60/460 volt, 1185/890 rpm motor, UL label. Unit includes epoxt coated CS shaft, 7" dia x 178" long w/(1) 3-blade impellor. (4) epoxy coated CS baffles 32" wide x 116" long. 60" dia x 60" high draft tube.