The HI758-26 are the replacement reagents for the HI758 Marine Calcium Checker® HC. These high-quality reagents are manufactured at the Hanna state-of-the-art facility and are clearly marked with the lot number and expiration date on each packet for traceability.

The HI758-26 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Marine Calcium Checker® HC. These reagents follow the Zincon Method in which the reaction causes a blue tint in the sample. By simply adding 1 mL of the first reagent to the sample, followed by a packet of the second reagent in the HI758-26 set, the reaction will take place and the HI758 will determine the concentration from the color that is produced. The results will be displayed in ppm of calcium. These reagents are designed to be used with samples that have an expected range of 200 to 600 ppm calcium.

The HI772-26 are the replacement reagents for the Marine Alkalinity (dKH) Checker® HC - HI772 and can be used with the Marine Alkalinity Checker® HC - HI755 . These high-quality reagents are manufactured at the Hanna state-of-the-art facility and are clearly marked with the lot number and expiration date on each packet for traceability.

The HI772-26 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with the Marine Alkalinity Checker® HC. These reagents follow the Colorimetric Method in which the reaction causes a distinctive range of colors from yellow to green to blue to develop. By simply adding the packet of HI772-26 reagent to the sample, the reaction will take place and the Marine Alkalinity Checkers will determine the concentration from the color that is produced. The results will be displayed in ppm of CaCO3 for the HI755 Checker or in dKH for the HI772 Checker . These reagents are designed to be used with samples that have an expected range of 0 to 300 ppm CaCO3 or 0.0 to 20.0 dKH.