Casey from SWISCO responded:
March 28, 2024
Hello, The main difference between the two tracks that you mentioned is that the 23-240 is designed to work with convex roller wheels, while the 23-272 is for concave wheels. You would need to determine which type of wheel that the door uses to confirm the best replacement option. See the video below for more information on these tracks. From there, you'll also need to compare the distance between the rails that the wheels ride on to confirm that the doors will have space to glide past each other. Thank you! Profile view of bottom concave roller track
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