Our heavy duty chair mechanisms come complete with 1″ threaded post, small #74 bell and washer. The 13-1/2″ mechanism comes with a 4-1/16 bell. Customers can order other bells as an “add-on” feature but it will not arrive pre-assembled.
Available Sizes:
- 13-1/2″
- 15-1/2″
- 16-1/2″
- 17-1/2″
- 18-1/2″
- 19-1/2″
