The brake cylinder assembly kit (J090B20), shown in Figure 2, consists of four (4) brake cylinder assemblies . The brake cylinder assembly kit ships with brake pads already assembled to each brake. A blue dot appears on two (2) of the four (4) brake cylinders, indicating that the brake contains a soft brake pad. The remaining two (2) brakes without the dot have hard brake pads. The new brake cylinder assembly is designed to handle the modern Operating Room environment with improved corrosion resistance and internal design changes to increase longevity and improve performance.