The Planted Tank Forum - View Single Post - Ultimate diy co2 cap?
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Old 02-08-2013, 02:11 AM   #4
Hoppy
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Has anyone bought one of these? If so, does it fit a standard 2L bottle very well? It is a great deal, at $5 with shipping included.

They illustrate the usage of this by showing it on a 2L bottle with a 90 psi pressure gage on the other opening, and no safety valve showing. Will one of those bottles actually hold that much pressure?
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