Paul from SWISCO responded:
May 28, 2013
Good afternoon. For the pivot shoe, check out our 15-129 and see how its dimensions compare to your own hardware. As for the balances, I think they look pretty similar to our Series 770 channel balance. What do you think? I'm not so sure what options you'd need, though. I recommend that you weigh your sashes and see what option on the S770-29 and S770-35 weight chart match them, respectively.
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