Feature Operates At 2.5-4.5 Psi & Delivers 30 Gph At Free Flow. Fits most carburetor-equipped cars, vans, light trucks & other applications. Comes complete with 2 pieces of 8mm barb hose straight fittings and an inlet filter unit. This Pump may be used as a Booster, Standby Unit, or completely Independent Fuel Pump Installation. Compatible with Petrol, Diesel, Fuel Additives, Bio Diesel, Blended Alcohol Fuels, and Racing Fuel Octane Booster Additives.