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The HI706-25 are the replacement reagents for the HI706 Phosphorus 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 each 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 HI706-25 are high-quality reagents that are pre-measured, allowing users to achieve fast and accurate measurements with their Phosphorus High-Range Checker® HC. These reagents follow the Amino Acid Method in which the reaction between phosphorus and reagents causes a blue tint in the sample. By simply adding 10 drops of the first reagent to the sample, followed by the packet of the HI706-25 reagent set, the reaction will take place and the HI706 will determine the concentration from the color that is produced. The results will be displayed in ppm (mg/L) of phosphorus. These reagents are designed to be used with samples that have an expected range of 0.00 to 15.00 ppm (mg/L) phosphorus.

HI 706-25 - Phosphorus HR Reagents for Checker, 25pk

SKU: HI706-25
  • Product Name:    Phosphorus High-Range Checker® Reagents 
    Dangerous Good:    This product is considered hazardous to ship and is subject to extra handling fees.
    Package:    Packets
    Quantity:    25 tests
    Method:    adaptation of the Standard Methods for the Examination of Water and Wastewater, 18th edition, Heteropolymolybdenum Blue method. The reaction between reactive phosphorus and the reagent causes a blue tint in the sample.

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