For higher fuel volume requirements of engines above about 150 horsepower, the high-performance Facet Cylindrical pumps can deliver. Facet fuel pumps have low power requirements (about 1 amp at 12 volts) and operate without troublesome seals or diaphragms. 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. Maximum fuel delivery 32 gallons per hour. Maximum pressure 6 to 8.5 psi. Typical flow 20 gallons per hour at 3 psi. 1/8 NPT female ports. 24 inch vertical dry lift. Negative ground (12v) only. This pump features an internal 74 micron filter. It is not equipped with an anti-siphon valve, so fuel may be pulled through the pump when it is turned off. Facet part number 476459(E) Note: The Facet "Interruptor" style pumps now feature reliable solid-state technology instead of points! The "E" stands for "Electronic".