Hydro-Logic Flowmaster Ultra Low Flow Meter 3/8 in - Filter Capacity Monitor
Gallonage and filter capacity monitor operates at flow rates between 0.01—0.5 GPM. Ultra low flow model. Displays in gallons or liters. For use with Stealth RO, Triton RO or any other systems with 1/4 in fittings and flow rates up to 1/2 GPM.