Overview Reviews Product Description The GPI digital diesel exhaust fluid meters are suitable for inline or end-of-hose installation for use with DEF, water, or similar fluids. These electronic flowmeters are virtually maintenance-free and provide continuous measurement, flow range of 3 to 30 GPM (10-100 L/min). This meter meets ISO 22241-2 annex C, D, E, F, G, H, I, diesel exhaust fluid (DEF)/Adblue standards. GPI Catalog Product Videos Custom Field Product Reviews Write a Review Write a Review × GPI 3 - 30 GPM DEF Digital Turbine Flow Meter 113255-24 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *