I've sold a lot lot of Aerogens and regulators. Used to work for JSI in St.Pete,Fl. they were a distributor when an elderly English
fellow owned Aerogen in the UK.
Then Sam Boyle/Sailnet bought JSI.
I worked for SailNet. Sold the remaining JSI inventory, worked with the older gentlemans daughter in the UK.
Sam really buggered up relations with this and most other vendors.
Sailnet went bankrupt.
Then bought again.
Now JSI is sort of back.
Confused? Don't fret.
search is a good idea.
Also Mark D. with Bluewater Sailing in St. Pete, a really good guy, used to be the purchaser for JSI. He might help.
Final thought, as I recall
those regulators had a domestic "equvilant"
less expensive and available. I might recommend that if you find a vendor pick up a spare set of blades. These are pretty good units and are probably worth the trouble