Replacement Casters for RACATAC RACATAC™ Replacement Casters are direct replacement wheels for maintaining the mobility and performance of compatible RACATAC™ rolling kneeling and sitting systems. They replace worn or damaged casters without requiring replacement of the complete RACATAC unit. 2" and 3" Replacement Caster Sizes Replacement casters are available in 2" and 3" sizes to match the caster configuration on your RACATAC. Each caster is sold individually, allowing you to replace only the wheels that need service or purchase a complete set when required. Individual Casters for Full or Partial Replacement Five casters are required for a complete RACATAC caster replacement. Order the appropriate quantity when replacing a full set, or purchase individual casters as needed for routine maintenance and repair. RACATAC Replacement Parts These casters are part of the RACATAC™ replacement parts line designed to help maintain existing equipment. RACATAC replacement parts are made in the USA with global materials.