Tom from SWISCO responded:
October 20, 2022
This looks like the old Milgard top sash guide. This isn't made anymore but you may be able to use our 18-009 as a replacement. The catch is that you'd need to trim the top edge down to be flush with the rest of the guide. Review the dimensions below to verify that everything else lines up. If so then I think this is the part you want. Detail of 18-009
Side view of 18-009
|