Free Chlorine Chemkey® Reagents (Qty 300)

Free Chlorine Chemkeys, range 0.04 - 4.00 mg/L Cl₂. For SL1000/SL250 Portable Parallel Analyzer (PPA). 12 boxes of 25 (300 tests total quantity).

USEPA accepted for reporting in drinking water analysis using Hach Method 10260.