Keller window balances

A handy person from dequincy, La says:
I need some series 900 balances 16 & 28 inches. These are for Keller dual pane windows (energy efficient). Would I be better off getting the green tip ones or would the spring action be too strong? Is the red tip ok?
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Paul Sr. from SWISCO responded:
Thank you for posting on the discussion board.

Yes, I believe the red tip should be fine.
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Donna from SWISCO responded:
You should replace the same color tip, size & length, and series as originally used.
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