For low fuel requirements on engines up to about 180 horsepower, a single Solid State pump such as this one is usually sufficient. Facet fuel pumps have low power requirements (about 1 amp at 12 volts) and operate without troublesome seals or diaphragms. Facet pumps are compatible with gasoline, alcohol blends (up to and including E85), diesel, biodiesel, and fuel additives. Maximum fuel delivery 30 gallons per hour at free-flow. Maximum pressure 3 to 4.5 psi. Typical flow 20 gph at 2 psi. 1/8 NPT female ports. This pump has no internal check valve or anti-siphon valve, so fuel can be pulled through the pump in either direction when it is turned off. Maximum 12 inch vertical dry lift capability.