Ich habe mein O2D2-2G System damals bei Kees Hordijk in den NL bestellt:
https://aviationservices.eu/

Beratung per E-Mail war topp.

Sauerstoffflasche (1,8l Alu) habe ich lokal zwei Stück gekauft. (wo ich auch tauschen lassen kann)

+1 für Kees. Super Service!

Allerdings funktioniert die URL bei mir nicht. Try https://www.aviationsupplies.eu/shop/

Edit: After 16 years successfully running his aviation business “Kees Aero Nautical Services“, Kees Hordijk has handed over his activities to his successor Dennis Schouten.

Dennis is a professional instructor pilot who likes to spend his time maintaining and flying (motor)gliders. He will continue providing the same dedicated service, products and website at aviationservices.eu

Feel free to contact Dennis whenever you have a question about one of his specialities: airplane covers, aviation oxygen and communication equipment.