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ITEM#: 2495-85550 PK
MFR#: 85550 PK
GFS Chemicals Amco Clear Primary and Deluxe Turbidity Standards Kits, For Use With: For Hach ratio/XR and ratio 2000 turbidimeter, Includes: 4 x 250mL of each 1.8, 18, 180 and 1800 NTU standards, sealed secondary standards of each value, Ca