Bob from SWISCO responded:
March 31, 2024
Thanks for posting. Stud Brackets commonly used with the 39-220B and 39-221B include the 39-545 and 39-546. Compare with your old stud brackets, if available, to confirm these match what you have. For covers and handles that work with these operators, see either the 39-375 and 39-376, or the 39-451 and 39-452, depending on the style you prefer. Let me know if you have any questions. |