Total Chlorine Ultra Low-Range Checker® HC - HI761
Free Chlorine Ultra Low-Range Checker® HC - HI762
Maple Syrup Digital Grader - HI759
Chromium VI Low-Range Checker/Tester - HI749
Chloride Checker® HC - HI753
Copper Low-Range Checker® HC - HI747
Iron Low-Range Checker® HC - HI746
iris Visible Spectrophotometer - HI801-02
Marine Alkalinity Checker® HC - HI755
Marine Nitrite Ultra Low-Range Checker® HC - HI764
Marine Low Range Nitrate Checker HC - HI781
Marine Phosphate Ultra Low Range Checker® HC - HI774
Marine Phosphorus Ultra Low-Range Checker® HC - HI736
Fluoride HR Checker® HC - HI739
Total Hardness LR Checker HC Handheld Colorimeter - HI735
Ammonia HR Checker® HC - HI733
Color of Water Checker® HC - HI727
Nickel HR Checker® HC - HI726
Fluoride Low-Range Checker® HC - HI729
Pool Line High Range Iron Checker HC - HI7214
Calcium Hardness Checker® HC - HI720
Chromium VI High-Range Checker® HC - HI723
Magnesium Hardness Checker® HC - HI719
Iron Checker® HC - HI721
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111800 µS/cm Conductivity Standard in FDA Bottle (500mL) - HI8035L
12.41 g/L (ppt) TDS Calibration Solution (500mL Bottle) - HI7036L
12.41 g/L (ppt) TDS Standard (1 L) – HI7036/1L
125 g/L NaCl Standard Solution (230 mL Bottle) - HI7089M
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