The HI731331 are the replacement glass cuvettes used with the HI96 series portable photometers and turbidity meters. Each cuvette has a 10 ml level mark to measure the appropriate volume. The HI731331 includes 4 cuvettes.
Index mark for proper alignment in the photometer
10 ml level mark for adding correct volume
Optically clear glass
 
When using a photometer or turbidity meter it is important to use clean cuvettes that are free from scratches. Any discoloration or scratches will interfere with any optically based measurement. The HI731331 are the replacement glass cuvettes that are supplied with the HI96 series portable photometers and with both portable and benchtop turbidity meters.