Get current pricing for Busch, 178 CFM Busch Inc. V 178 Cfm (11 Lb/hr) Busch Inc. Dry Screw Pump, Model Nc-0250, Total Design Head - 11 Torr. Motor Speed = 3600, Motor Size 15 Hp. Seal Type Inlet Single . Product Category: Process Equipment, Sub Category: Process Pumps: