Pictures here:
https://photos.app.goo.gl/5msR9brbbq3dspKp8Avox 311L w/ integrated altitude compensating regulator (Scott fill port). These are used as egress bottles in airliners. 5 available, 5 years service life remaining, need hydro test, 3.5lbs full, FAA-PMA. $750ea
Scott-1 available, unlimited service life, tested 7/2020 (good till 7/2025), 12lbs empty. $150

MH AL-415 w/CGA540 and gauge-needs hydro test, 5lbs. $125, ($205 new).

Aerox M size 4-person system, bottle needs hydro test. $700. New cost is currently $823 and only includes one mask. I’ll include 4 masks and 4 oximizer cannulas.

2-outlet CGA540 regulators, 7 available. $175ea (MH charges $275).

MH branded single outlet CGA540 regulator. $100 ($210 new)

MH branded 4 outlet CGA540 regulator, $250. ($375 new from MH)

MH EDS inline regulator. $100 ($200 new from MH)

MH EDS D1a, 2 available, $200 ea. ($299 from MH when available)