A built in ADJUSTABLE REGULATOR, No Return Line Needed | 15/16,000 hour Electric Motor | Flow Rate of 100 GPH | VacU Seal Technology (Shaft Seals Under Vacuum Instead Of Pressure for Long Life) | Wire Screen in Inlet Port for Added Protection | Complete Installation Kit With: No Drill Mounting Bracket, Wiring Harness, AND 1/2” Big Line Fuel Lines are Standard.