We are currently working on a project utilizing some existing Westinghouse panelboards filled with 20a-1p circuit breakers we and now installing new furniture partitions with multi-wire branch circuits, the problem is that the current manufacturers rep. (Eaton) informed me that Westinghouse never made handle ties for their breakers so replacement or OEM parts are unavailable. Is there any other manufacturer that makes handle ties for all types of breaker manufacturers? Thanks in advance..