Series 800 3-wheel mechanical flow meter kit for AC and DC pump products. Designed to meet the stringent demands of monitoring fuel usage accurately and dependably. Rugged construction easy-to-read numbers, and the flexibility of horizontal or vertical positioning. Can be field-calibrated for utmost accuracy, regardless of the fluid. Flow rate 5 to 20 GPM. 50 P.S.I. Compatible fluids: Diesel fuel, gasoline, kerosene, mineral spirits, stoddard solvent, and heptane. Heavy-duty. 2 year warranty.