This is a new mounting bracket for a Kavo 4690 Control Unit that is knee controlled. This bracket is an after-market part made to the original specification. The bracket may fit other Kavo models, but that is for the buyer to determine. Kavo has not had these in stock for quite awhile so if you are buying a used Kavo system on eBay, this might be a good chance to get the mounting bracket quickly. You will need to supply your own screws.