At least here in CO, Airgas will not touch them unless the tanks are theirs (leased).
The Fire Extinguisher place will sell you a bottle and fill it. But I was told that you own the bottle and all inspection (yearly) come out of your pocket
With the lease, the only thing you ever pay for is the fill. Might inquire before purchase.
Got em filled. Thanks to all who replied and Ted for the winner:
1) BOCAFIRE | Quality products and services in the areas of fire protection, safety and security at a competitive price for commercial, residential, industrial, marine and restaurant needs.
Boca Security & Fire Equipment
4201 Oak Cir # 45, Boca Raton, FL - (561) 368-1012
$20 for 5 lb and $29 for 10 lb refill. A little more than the other place, but closer. Had to leave them for p/u next day.
BTW, no adverse affects on the plants. Kept an eye on them and they seemed fine, just no pearling with no c02.
Pearling now and they seem happier, at least I am................