This reading is very useful

Essential Features:

20 mL sachet (3 pcs

Nominal Micron Rating: 5 micron (P5 cartridge)

Hanna Fluoride High Range Checker® HC Calibration Check Set - HI739-11 heavy metals water filter This reading is very usefulThe Fluoride High Range Checker HC Calibration Check Set HI739 11 provides a simple solution to validating the Fluoride High Range Checker HC HI739 that has a range of 0. 0 to 20. 0 ppm (mg L) fluoride. This high quality set of standards is manufactured in our state of the art facility and comes supplied with a Certificate of Analysis. The Certificate of Analysis provides the lot number, reference values and expiration date for traceability when