looking for a quote on 15 or 20 of these
A professional from Wilmington, DE says:
December 30, 2015
Dave from SWISCO responded:
January 5, 2016
I believe that our 39-312 is a newer version of the same operator you show in your photos. Just make sure to compare our dimensions with your sample. I would also suggest ordering a new 39-512 track in case the newer style guides won't fit your existing track. As for the handle, our 39-114L is the newer contoured style most manufactures are using today. It should be interchangeable with your handle.