Overview Gravity fed type pump with simple two-wire design. Works on 12 volt negative ground systems only. Includes fittings and mounting hardware along with a 100-micron in-line filter and easy to follow DIY instructions. Pumps require approximately one amp average draw at maximum delivery. At 4-7 psi (pounds per square inch), it pumps 35 gph (gallons per hour) of methanol, E85, or race gas. Universal design for most 4, 6 & 8 cylinder carburetor applications. Please see part #12S for gasoline applications, part #12D for diesel applications or part #42S for import applications. Note: Must be mounted within 12" of fuel tank Features Solid-state Worry Free Electronics Internal Pressure Regulating Universal Design Allows For Easy Installation No Diaphragms Or Mechanical Parts To Wear Out They Make An Excellent Fuel Transfer or Booster Pump Hose Barbs Fit 5/16" Fuel Hose Self-priming, 2 wire design Eliminates vapor lock and flooding