The Amico Oxygen Y-Block Flowmeter, S-YBFMO15UDN, 0-15 LPM, DISS Nut connection type, Amico Patient Care Corporation. The smallest increment on the flowmeter is 0 LPM and the largest 15 LPM. The flowmeter has an easy to read window for selected LPM. All labeling is USA color coded based on gas type. Amico Flow Range: 0-15 LPM Connection Type: DISS Nut Standard:USA Condition: New OEM Original Purchase Type: Outright Warranty: As Is Returnable: Yes