Emily from SWISCO responded:
March 7, 2024
Hello there! Thanks for reaching out to us. Our 39-253LB and 39-253RB operators indeed look like a good match. These are designed to use the 39-529 track slider which is sold separately. However, I'm afraid I can't say for sure regarding the 39-031 and 39-032. Photos showing the full view of the operator's arms would allow us to confirm. Please note that we also sell the 39-155 and 39-156 that are similar. The difference is the length of the link arm. |