M2004 Water Cooler Motor 3/4 HP - 115 / 230 Voltfor Dynaflux R2000 systemsM2004 motor is 1 ph, 115/230vac. switchable, 50/60 hz. This Heavy-Duty Fan and Pump Motor has Sealed Bearings is CE certified. M2004 Water cooler motor for Dynaflux R2000 welding water cooler.