Tuhorse 3 HP 4" Submersible Well Pump Complete Set Incl Motor, Pump-end and Control Box. 400ft Maxhead, Rated 23gpm, 30gpm Max. 1-phase 230v, 60Hz, 2.2kw, 3450 rpm, 1 Year Warranty Just slightly under 4 diameter, fits 4" and larger wells 1.5 inch NPT brass outlet (discharge) 12 Stages. Cut off head 400feet. Max flow: 30GPM, rated 23GPM Metal cased control box includes a 120uF start and 40uF run capacitor Meets NEMA industrial standards, manufactured under ISO 9001:2000, conforms to IEC34-ICE standards.