3 inch diameter pump for use with 3 inch or larger wells - 1 inch female IPS pump outlet - 5 gallons per minute at 320 foot head - 1 phase - Dry run protection - High efficiency pump and motor - Protection against upthrust - Soft start - Over voltage and under voltage protection - Over temperature protection - High starting torque - The following are available if the pump is used with the CU-301 MkII pressure controller: Constant pressure control - Variable speed - Electronic control and communication