I find this discussion interesting, the compressor pumps for filling oxy bottles are expensive and wear out very quickly, I run my Phantom on two OG20s, in Australia these machines cost me $3300 each, that is $6600, If I had gone for one OG20 and a micro pump at $5000 I would then have to have an oxy bottle for storage, this would have cost me close to $9000 all up. I don't see the reasoning as the two OG20s run my Phantom at the same level I have run it on bottled oxy. I would suggest that people look into the cost structure of these options and also try their torch on the concentrators before they fork out all the extra money for the micro booster and storage tanks.
cheers, Bernard
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