So I was digging through...

[t.s.k.]

.... my old darkroom stuff and out pops this.

Obsolete or does this go to the recycler? I'd love to know if the cans are still available.

 

[t.s.k.]

IIRC I believe that system was merely compressed air and nothing more. It also used no disposable plastics, which I'd much rather not contend with. Hate to think how many plastic straws have been thrown out for the sake of cleaner electronics.