YSI Colorimeter Reagents - Manganese, Manganese Mn-2 TP (Low Range), Format: Powder, For Use With: Used to measure low range manganese, Photoflex colorimeter, Range: 0.007 to 0.7mg/L, Quantity: 50/Pk.
YSI Colorimeter Reagents - Manganese, Manganese Mn-1 TP (High Range), Format: Powder, For Use With: Used to measure high range manganese, Photoflex colorimeter, Range: 0.2 to 20mg/L, White, pH Range: 6.3, Quantity: 100/Pk., Storage Requirem