Diameter: 3-1/8" (80 mm). The CATS Tonometer Tip Cleaning Station has a screw cap and six ports specifically sized to hold the CATS Tonometer Prism. The top unscrews so that cleaning/disinfection solution may be added to the base. The three inside cleaning ports hold the used CATS Tonometer Prisms in the cleaning solution. Once cleaned and disinfected, the prisms are moved to one of the three outside drying ports.
Cleaning: Soaking or wiping the CATS prism with alcohol will VOID the warranty. Opti-Cide® (item #98200 or 98201) is recommended for use as a disinfectant solution.