hanna checker - hanna instrument - alkalinity

  1. R

    Hanna cuvettes are off!!

    I have been using a 10ml syringe to accurately fill my cuvette for awhile with no problem. I recently bought new cuvettes from saltwateraquarium.com they came and they weren't the same as the old ones and fill past the 10ml line. I thought maybe I got some bad cuvettes so I ordered more from...
  2. gotmesalty77

    Florida ISO hanna checkers Alk and calcium

    Figured I'd see if there were any central florida reefers that were looking to sell a few checkers. I am looking for alk and calcium but i might also want a ultra low phosphorus as well. I am located in Orlando.
  3. RichyRich50

    Georgia HANNA CHECKER - Hanna Instrument - ALKALINITY, COPPER, CALCIUM, PHOSPHORUS ULR, w/ CALIBRATION CHECK

    Hanna Checkers $30 CALIBRATION CHECK $5 call or text me 678-467-7495
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