Gear Drive Tank Air Mixers 316 stainless steel shaft with propeller Assembled with gear reducer Low Speed High Torque Gear Drive Tank Air MixersMotor Type: blade air motorMixer Power: 1/2 HP316SS Shaft Dia.(in): 3/4"316SS Shaft Length.(in): 50"Propeller Dia.(in): 12",3 bladeRecommended Speed (rpm): 70 to 350Air Motor In/out Thread(in): NPT1/4"Recommended Air Pressure and Consumption: 40 PSI / 20 ...