Home / Products / Water Treatment Solutions / Spare Parts and Accessories / Calibration Kits / Hach FerroZine® Iron Reagent Solution Pillows, pk/50 SKU: 230166 Hach FerroZine® Iron Reagent Solution Pillows, pk/50 SKU: 230166$30.58 Hach FerroZine® Iron Reagent Solution Pillows, pk/50 SKU: 230166 quantity Add to cart 🛒 You’ll complete your purchase securely on our Shopify store. Description Description For determination of trace levels of iron by the Ferrozine method. Hach method 8147. Range: 0.009 to 1.40 mg/L. Sample size: 25 mL. Pack of 50 pillows. Related products Hach Ammonia Salicylate Reagent Powder Pillows, 10 mL, pk/100 SKU: 2653299 $107.34 Hach Aluminum Reagent Set, Aluminon SKU: 2242000 $192.00 Hach Ammonia TNTplus Vial Test, ULR (0.015 – 2.00 mg/L NH₃-N), 25 Tests SKU: TNT830 $74.62 Hach Bag, Sterile, WhirlPak, 207 mL, 500/pk SKU: 2233100 $86.28