I have an Aerox constant flow regulator, with needle valve, pressure gauge, Nelson flowmeter, and moustache style cannula. The regulator is set up with a 4' high pressure inlet line so it can be mounted remote from the O2 bottle. Fits standard Schleicher factory bottle. That setup allows the pilot to reach & adjust the needle valve (which controls flow rate) in flight. It was used lightly as a temporary/removable system in ASW-27/29.

Will trade even and deliver for a good steak dinner & bottle of wine at Reno Convention.
Email: Royb - AT - bourgeoiswhite.com
ROY