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  1. G

    Automatic pH Controller

    I've used JR Peters stuff a few times and have been really lucky.
  2. G

    JR Peters and Hydro

    I can also attest to their stuff. I've used it a few times and it's awesome.
  3. G

    JR Peter's - Jacks Classic Dynamic Duo

    I've used this stuff too and it's awesome
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