• Output is a 1/4" barb.
• Application: Fits the disposable oxygen bottles.
• Type: The regulator is left hand thread,
• Material: Made of soild brass.
• Function: Small oxygen regulator. No gauges, just a knob on top that adjusts pressure.It's a flow control valve.

The Aoaof Oxygen Regulator is for Disposable Tanks with Barb,it is a small oxygen regulator that fits the disposable oxygen bottles.