“0.4 to 10 GPM Meter. Flow Rate is Dependent on Liquid Viscosity. Gallon Register. Fluorocarbon Seals. Accuracy ±2%. Left to Right Flow. For Use with High Viscosity Lube Oils (125 cSt+). Rated to 1000 PSI. 1″ NPT Threads. Register – 4 Digit Resettable (999.9) and 7 Digit Totalizer (9 999 999).” has been added to your cart. View cart