For low fuel requirements of carbureted engines up to about 100 horsepower, a single Posi-Flo fuel pump like this is usually sufficient. Facet fuel pumps have low power requirements (about 1.5 amp at 12 volts) and operate without troublesome seals or diaphragms. The Posi-Flo pumps feature a black composite chassis for quieter operation. Built-in pressure relief means no flooding after shutting down a hot engine. Facet pumps are compatible with gasoline, alcohol blends (up to and including E85), diesel, biodiesel, and fuel additives. This complete pump kit includes the Facet Posi-Flo pump, mounting hardware, a 74 mircon filter that screws into the inlet port and accepts your 5/16" ID rubber fuel hose, and an adapter that screws into the outlet port and accepts your 5/16" ID rubber fuel hose. Maximum fuel delivery 25 gallons per hour. Maximum pressure 1.5 to 2.5 psi. Typical flow 10 gallons per hour at 1 psi. 1/8 NPT female ports. This pump does not have an anti-siphon valve, so fuel can be pulled through the pump when the pump is off. An built-in one-way check valve prevents fuel from draining backwards through the pump.