American Health Care EZ Click model B-540-15 oxygen regulator for O2 gas. Flow rate is 0-15 LPM, with max inlet pressure of 2500 PSIG.
Used, acceptable pre-owned condition with slight wear consistent with use. Sold as is and untested.
Approximate size is 6.5 in long, 3.5 in wide, and 2.25 in high. Item weight is 1.7 lbs.