Thread: DIY CO2 for Crypts in 1962
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DIY CO2 for Crypts in 1962
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DIY CO2 for Crypts in 1962 - 04-28-2006, 08:01 AM
http://www.cryptocoryne.com/co2.htm

Reference to DIY use, over 40 years ago.

Regards,
Tom Barr
  
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