M & w Window part

A quick learner from Mount Pleasant, North Carolina says:
Here are the pics to the spring on my MW window. I am pointing to the plastic piece
that is broken in one of the pics.

I am not completely sure how to approach fixing this, but I was hoping the experts could tell me
User submitted photos of a window balance.
Profile picture of Tom
Tom from SWISCO responded:
Please see our Series 850 balance, this looks to be a good match. That hook at the top of the balance is no longer made, I'm afraid, and all modern Series 850 balances are installed using a screw on clip. You can adapt this to your window by using the 26-200 screw plug, which slides into the hole where your original hook used to go.
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