GRYVOZE 2-1/2 Inch Inline NPT Thread Digital Turbine Flow Meter, 21-264 GPM, Fuel Turbine Flowmeter with LCD Display for Water, Diesel, Gas Oil, Gasoline, and Other Liquids, 5 Units: Gallon, QTS, PTS, L, m³, Used-(x2) AAA Batteries Used For Pictures Only And Is Not Included-See Pictures