The Amico Oxygen Flowmeter FMO-15U-F2-D, 0-15 LPM 1/8″ FNPT, USA Color Code is dial style and has an anodized aluminum body. The flowmeter’s smallest increment 0.5 LPM. The labeling is USA color coded based on gas type. Flowmeter has an easy to read window for selected LPM. Amico Flow Range:0-15 LPM Standard:USA Connection Type:1/8" FNPT PSI:50 PSI Flowmeter Options:Dial