Replacement coil balance

A purchasing agent from Southbridge MA says:

We Need to get a few of these replacements it is rated at 440

Existing coil balance system.
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Casey from SWISCO responded:
I've made a list of possible replacement parts for you on the right side of this page. Please review them and let me know what you think.
How to Replace a Triple Coil Balance System
How to Replace a Triple Coil Balance System
VIDEO
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How to remove window pivot shoes
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Removing Rusted Pivot Bars
Removing Rusted Pivot Bars
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Removing a Triple Coil Window Balance
Removing a Triple Coil Window Balance
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