Hanna Phosphate Reagent LR HI713-25

The Hanna HI713-25 refill supplies the phosphate reagent used by the HI713 Low Range Checker. It is for the method that measures 0.00–2.50 ppm phosphate, helping an existing HI713 setup remain ready for routine water testing.

Each measurement depends on the color produced after the reagent is added to the sample. Follow the meter's instructions for preparing the blank, mixing the reagent and timing the reading. A digital result still depends on careful handling of the test sample.

Use the instrument number when selecting this refill rather than substituting an ultra-low-range product. Keep unused reagent packets sealed, and check the printed expiration date. The refill replenishes test chemicals; it does not include a replacement Checker.