... air compressor air flow meter: 1.special for tiny gas, air,oxygen 2,measure and control flow rate 3.various gas flowmeters Acrylic Air Flow Meter 1 ... in medical equipment, air samplers, gas analyzers, pollution monitors, chemical injectors, cabinet purging, etc. Models in stock: 0.5-8LPM,1-12LPM,2 ... 6. Ss Ss Acrylic Agate ball PTFE 1-Silicon rubber 2-Fluorin rubber 3-Butyl air compressor air flow meter