So, unless you have an unlimited source of LP air, and, don't have to pay for the electricity used to make it, a masterline electric booster for around 8.5k is the cheaper solution for HP O2.
Eventually as my supply of 300bar O2 gets used up, I'll have to bite the bullet since there is no way in hell I'll burn $5 of electricity an hour to compress drive air which then goes through a booster to pump O2 to a higher pressure.
Life in europe was so much simplier, with a ready supply of 300Bar O2 tanks at every AirLiquid, MesserGriesheim, Linde, or Westfahlen gas supplier.
Michael
Eventually as my supply of 300bar O2 gets used up, I'll have to bite the bullet since there is no way in hell I'll burn $5 of electricity an hour to compress drive air which then goes through a booster to pump O2 to a higher pressure.
Life in europe was so much simplier, with a ready supply of 300Bar O2 tanks at every AirLiquid, MesserGriesheim, Linde, or Westfahlen gas supplier.
Michael