In a compact design, the Dresser 1M300 and 3M300 HP ROOTS Rotary™ Meters offer extremely low start and stop rates and superior performance in a package significantly lighter than traditional high-pressure meters. Dresser High Pressure meters are suitable for handling most types of clean, dry, common gases at either constant or varying flow rates. Models 1M300 and 3M300 are well suited for production wellhead, gathering applications, gas transmission, farm taps, grain dryers, irrigation and compressed fuel taps.