Valve for CO2

• To: aquatic-plants at actwin_com
• Subject: Valve for CO2
• From: nguyenh at nosc_mil (Hoa G. Nguyen)
• Date: Tue, 30 Jan 96 13:24:53 PST

Where can I find a good back-flow-preventing valve for CO2 that won't
dissolve in the carbonic acid?  And how much did you pay for it?

Thanks,
Hoa

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