pls help me determine the proper tip color

A handy person from California says:
Hi

I need a pair of spirl tilt window balances. my window sash weights at 26 lbs. the balance dimater is 3/8 inch and lenght is 28 inch.
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Casey from SWISCO responded:

Hello,

We can't be sure without seeing photos of your original balance removed from the window but you can start by comparing the S900-28 to your assembly based on the specifications you've provided. I would recommend a yellow strength option for a 26-pound sash, which will support between 24 and 34 lbs. Thanks for posting. 

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