Replace scratched or discolored cuvettes to ensure accurate test results from your Hanna Checker HC Colorimeter. Replacement Hanna glass cuvettes each feature an easy-to-read 10 ml level mark so you can add the correct volume of aquarium sample water with greater ease and convenience. This set of two glass cuvettes can also be used to test more aquarium water test samples using a single Hanna Checker HC colorimeters. Includes 2 cuvettes and 2 caps.

When using a colorimeter or photometer it is important to use clean cuvettes that are free from scratches. Any discoloration or scratches will interfere with any optically based measurement.