Home / Products / Hach Ferrous Iron Reagent Powder Pillows, pk/100 SKU: 103769 Hach Ferrous Iron Reagent Powder Pillows, pk/100 SKU: 103769$37.66 Hach Ferrous Iron Reagent Powder Pillows, pk/100 SKU: 103769 quantity Add to cart 🛒 You’ll complete your purchase securely on our Shopify store. Description Description For determination of ferrous iron by the 1,10-phenanthroline method. Hach method 8146. Range: 0.02-3.00 mg/L Fe. Pack of 100 powder pillows. Related products Hach FerroZine® Iron Reagent, 500 mL SKU: 230149 $101.94 Hach Iron TNTplus Vial Test (0.2-6.0 mg/L Fe), 25 Tests SKU: TNT858 $77.22 Hach FerroZine® Iron Reagent Solution Pillows, pk/50 SKU: 230166 $30.58 Hach FerroVer® Iron Reagent Powder Pillows, 10 mL, pk/100 SKU: 2105769 $32.94