Teflon-lined Model RK20-C measures flow of electrically conductive materials in full pipes. Meter has no moving parts or obstructions in flow stream, so it is virtually maintenance-free. It also is insensitive to changes in specific gravity, viscosity, pressure, and temperature. Available in pipe size from 3/8-6 in., flowmeter measures flows from 1-40 ft/sec with accuracy of ±0.3% of reading.