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WTB - pH probe

Discussion in 'Buy/Sell/Trade' started by AJ, May 11, 2010.

  1. May 11, 2010 #1
    AJ

    AJ Inactive User

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    Anyone got a used pH probe around that you're no longer using?  I need an inexpensive, but working, pH probe for a friend's calcium reactor.
    --AJ
     

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