For those who already have the Red Sea Alkalinity Pro Test Kit, you just need to get the Red Sea Alkalinity Pro Test Kit Reagent Refill. It includes enough reagents for 75 tests.
Red Sea’s KH\ALKALINITY PRO Reef Test Kit is an advanced titration test, measuring the level of buffers in your reef aquarium to an exceptionally high accuracy of 0.05 meq/l (0.14 dKH).
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