Hanna Checker Colorimeters
Hanna Checkers are some of our favorite test kits for testing our reef tanks. These small and innovative little egg-shaped devices make our aquarium-keeping lives so much easier with simple testing procedures and most importantly – an all-digital readout! Perfect for every aquarist, but especially those that struggle determining the color scale on standard test kits.
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Hanna InstrumentsPhosphate Ultra Low Range PPM Colorimeter HI774 Hanna Checker - Marine Water$67.99 -
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