Add fuel tracking capabilities to your Garmin chartplotter and optimize your boat’s fuel economy. Tracks fuel flow use and sends the data to your chartplotter via the Garmin CANet or NMEA 2000. Includes fuel level sensing capability when connected to an existing analog fuel gauge or resistive fuel tank sensor. Maximum fuel flow rate for the GFS 10 is 50 gallons per hour, and the minimum flow rate is two gallons per hour.3/8″ barbed fittings Maximum back pressure: 0.5 PSI at 20 GPH/1.0 PSI at 40 GPH Supply voltage: 10-22 V Fire resistant: Complies with U.S. Coast Guard standards