Paul from SWISCO responded:
January 17, 2014
Thank you for your patience int his matter. For the spiral balance and pivot shoe, check out our S600-29 and 15-070, respectively, and see how they match your window. As for the sash lifts, we've been unable to locate an exact match. You could consider our 20-007 or 20-011, or even our 67-025, though it would require drilling new holes.
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