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Paul from SWISCO responded:
February 28, 2022
Thanks for posting. If the top and bottom sash heights are the same height, you can use 24-939 Andersen balance to replace the balances on both sides of the window. However, if the top sash height is shorter than the bottom sash, you will need the 24-R13-927 on one side and the 24-L9-1327 on the other side. Let me know if you have further questions. |