Oxygen 15 LPM Regulator CGA 870 w/barb 0-15 LPM Regulator, CGA 870 with barb outlet Lightweight aluminum body with all brass core Direct flow orifice design Rated for use up to 3000 PSI Ergonomic handle Meets FDA, CGA, ASTM Standards 1 Year Manufacturer’s Warranty Flow Ranges:  .5, 1, 1.5, 2, 3, 4, 5, 6, 8, 10, 12, 15 LPM