Bob from SWISCO responded:
March 6, 2024
Thanks for writing in. Slimfold now uses a newer style spring loaded guide pin, the 21-007. It should fit older Slimfold model doors. Take a look at the diagram below. As far as tracks go, I believe our 21-404 and the other-sized varieties I have listed on this page will work for your door. In addition to the 21-007, you will also need the 21-001 bottom threaded guide. Look at the diagrams below to confirm it matches your old bottom threaded guide pin. Let me know if anything seems off before proceeding. Also see the video that shows how to install this hardware. Let me know if you have further questions. Measurements for 21-007
Alternate view of 21-007
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