Hanna Marine Magnesium Reagent

Hanna HI783-25 is the replacement reagent set for the HI783 Marine Magnesium Checker, with supplies for 25 tests. It replenishes the chemicals used to turn a marine-water sample into the color reaction measured by the instrument.

Select this refill by the HI783 model number. Hanna also makes magnesium-hardness testing products for other applications, and similar parameter wording does not mean those reagents use the same method.

Prepare and read each sample according to the HI783 instructions, using the required measuring accessories and clean cuvettes. The lot number and expiration date on the reagent packaging help track the supply being used. Keep that information available when comparing readings or investigating an unexpected result.