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Hanna Checker (Salinity & Calcium)

Corey Dufrene

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Salinity only used a few times. $55 shipped or $65 shipped with box of 20 calibration packets. Calcium used but in good condition. Enough reagent for 15 tests (exp. 4/2023). $40 shipped.

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hqn77

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I'm putting my name on the list if other deals fall through.
 

Mastering the art of locking and unlocking water pathways: What type of valves do you have on your aquarium plumbing?

  • Ball valves.

    Votes: 68 52.3%
  • Gate valves.

    Votes: 67 51.5%
  • Check valves.

    Votes: 33 25.4%
  • None.

    Votes: 29 22.3%
  • Other.

    Votes: 9 6.9%
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