Free Chlorine Reagent Powder Pillows, DPD (pk/1000)

These Free Chlorine Powder Pillow reagents are USEPA accepted for reporting in drinking water analysis using Hach Method 8021. For use with Hach’s chlorine visual test kits.

Product Details
• Pack of 1000 powder pillows
• 25 mL sample size
• Range: 0.1- 10.0 mg/L
• Boric Acid free!