Hach Free Chlorine Chemkey® Reagents, 0.04-4.00 mg/L Cl2, Box of 25, 9429000By Hach $27.40 | EA Quantity discounts available QuantityPrice Product #: 700115Mfr. Part #: 9429000 This item is in stock Quantity -+ Add to Cart Free Ground Shipping On All Orders Over $1500!*Conditions Apply* Details Description Free Chlorine Chemkeys, range 0.04 - 4.00 mg/L Cl₂. For SL1000 Portable Parallel Analyzer (PPA). Box of 25. USEPA accepted for reportin... DetailsBackDescription Free Chlorine Chemkeys, range 0.04 - 4.00 mg/L Cl₂. For SL1000 Portable Parallel Analyzer (PPA). Box of 25. USEPA accepted for reporting in drinking water analysis using Hach Method 10260. Includes 25 Chemkeys