PRODUCT AVAILABILITY: Did you know you can view a product's availability right on the product page? Simply enter the quantity you want to purchase and the current availability will appear below the item.
Not yet rated
Kit contains 0.0, 20, 200, 1000 and 4000 NTU standards required to calibrate the Hach 2100N IS/AN IS instruments. The deluxe kit also contains sealed secondary standards of each value.