For Adults. Liter Flow Increments: 0, .5, 1, 2, 3, 4, 5, 6, 8, 10, 12, 15. For use with M2 through E sized cylinders.

Features

• New click style flow control
• Lightweight uni-body design
• Color: Green
• Meets or exceeds accuracy standards for ASTM, American National and CGA
• UL Approved
• Barb outlet