The Planted Tank Forum - View Single Post - CO2 supply in Greensboro
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Old 10-31-2010, 03:29 PM   #4
Conagher
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Roberts Oxygen on Triad Drive (just off sandy ridge road exit) does the 5 pound tank exchange for $8 ($8.62 after tax). I just swapped tanks a couple of weeks ago, so the pricing is valid. They also exchange 10 pounders, but I do not know the pricing on them.
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