Hydraulics International Compact Oxygen Booster in like new conditions - very few cycles
23:1 Ratio.
Boost Pressures up to 3450 PSI.
Input pressures as low as 300 PSI.
10.5 lbs, 13.25" Long, 3.25" Wide, 3.25" High.
1/4 NPTF Threads on head, and drive gas - no adapters required.
I got a Haskel and i don't need this any longer
Add Helium sells this for $2,399 --> yours for $999 before it goes on Ebay