192022 Tuthill Corp FR1118P10 3 to 26 GPM In-Line Digital Meter. Accuracy of ??1%. Rated to 70 PSI. Bottom to Top Flow. 1 NPT Threads. Can Measure in Gallons, Liters, Quarts, or Pints. 5 Digit Resettable Register with Two 7 Digit Totalizers (1 Non-resettable, 1 Resettable). Protective Rubber Guard. For Use with Diesel Exhaust Fluid, Water and Detergents.