window spring and pully system

A quick learner from Edison New Jersey says:
Need replacement parts for a spring loaded, twine pully system. Pictures attached.

Can this be converted to the tubular design?
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Tom from SWISCO responded:

Hi there! This is a custom type of channel balance, but it's a simple enough configuration. Basically what you have here is our Series 770 but with the bottom terminal clip swapped out for the more rounded 15-044 , which is better suited to fit in your pivot shoe.

Does that interest you? I'll need a bit more information before we can proceed, if so. Start by giving me the length of the metal channel and the quantity you needed altogether. I will also need you to confirm how it installs at the top of the window, be it with a hook or screw.

A quick learner from Edison New Jersey says:
Thanks for responding. I have placed an order for six sets based on the links you provided.

Merry Holidays to you!
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Tom from SWISCO responded:

And to you as well! We really appreciate your order, too, of course. Please let me know if we can be of any help in the future.

A quick learner from Edison New Jersey says:
Thanks, I ordered some parts (worked great), but came across another that is needed for repair. It is a bar, (key?) that unlocks the pivot when the window is swung back into place.
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Tom from SWISCO responded:

I'm very happy to hear the parts you bought worked out. Concerning this pivot bar, it appears to match our 26-443 . I would just review our dimensions to ensure that they all align.

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