Intex Pure Spa Hot Tub Removable Headrest & Seat Accessories (4-Pack) The convenient spa headrest allows you to comfortably rest your head while you relax in the soothing spa Headrest can be partially filled with air to fit your personal preference for firmness Seat can be set for two different height options, 3" and 5.8" Removable for convenience For use with all Intex PureSpa models 28401/28403/28404/28413/28421/28423/28453