1/4" NPT connection on supply and return line, hose connection for ventilation.
Delivers up to 255 lph. Max 100 PSI, for engines up to 630 hp.
Mainly intended for U9 and U2 tanks but will fit tanks with between 13" and 15-1/2" depth.
Link to flow chart: https://www.tanksinc.com/pdf/4_series_fuel_pump_flow_chart.pdf