The Amico Medical Air Flowmeter FMA-15U-DH, 0-15 LPM DISS Handtight, USA Color Code has a small and light brass body. The thorpe style flowmeter has a white background making it easy to read, comes with a “D” shaped knob, and has color coded tube and labeling. The flowmeter also features an inlet filter as well as an inlet extension. Amico Flow Range: 0-15 LPM Standard: USA Connection Type: DISS Handtight PSI:50 PSI