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Fluoride High-Range Checker® HC Reagents (20 Tests) - HI739-26

The HI739-26 are the replacement reagents for the HI739 Fluoride High-Range Checker® HC. These high-quality reagents are manufactured in our state-of-the-art facility and are clearly marked with the lot number and expiration date on the bottle for traceability.

  • Pre-made reagents for ease of use
  • Prepared with high-purity chemicals
  • Marked with expiration date and lot number for traceability


The HI739-26 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Fluoride High-Range Checker® HC. These reagents follow the SPADNS Method in which the reaction between fluoride and the reagent causes a colorless complex in the sample. By simply adding 2 mL of SPADNS reagent to two cuvettes, and subsequently 8 mL of the second reagent to one and 8 mL of sample in the other, the reaction will take place and the HI739 will determine the concentration from the color that is produced. The results will be displayed in ppm of fluoride. These reagents are designed to be used with samples that have an expected range of 0.0 to 20.0 ppm (mg/L) fluoride.

Additional information

Weight 0.46 kg



SKU HI739-26
Name Fluoride High-Range Checker® HC Reagents (20 Tests) – HI739-26
Package Bottles
Quantity 20 Tests
Method adaptation of the Standard Methods for the Examination of Water and Wastewater, 18th edition, SPADNS method.


Fluoride High-Range Checker® HC Reagents (20 Tests) – HI739-26