This quick-fit modular fuel meter is easy to install, easy to use, and easy to maintain. It is designed for the field measurement of thin viscosity petroleum fuel only and intended for use with pump systems in the 5-30 GPM or 19 to 114 L/m flow range. Using mechanical gears, this meter translates flow data from a nutating disk into calibrated units which are indicated on the face of the meter. The M30 is equipped with both NPT and Flange connections which allows it to be installed on all threaded pump outlets or modular GPI products.