ASSY., PACK, CHEMKEY. 25 PIECE, ORTHOPHOSPHATE, HIGH RANGE-HACH 8636500

Chemkey reagents contain the same chemicals and execute the same process steps that you have trusted for decades — now delivered in a simple, self-contained package. EPA-approved for reporting of Free and Total Chlorine. Do your test in just seconds with no hassle or stress. Chemkeys work with the Hach SL1000. (9430000)