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💧 Stay ahead in water quality with precision you can count on!
Hach DPD Free Chlorine Reagent Powder Pillows provide EPA-certified, highly accurate chlorine testing within a 0.02-2.00 mg/L range. Packaged in a convenient 100-count set, these pre-measured reagents are designed for use with Hach colorimeters and spectrophotometers, making them ideal for routine monitoring of municipal, groundwater, and surface water quality.






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