spiral balance tip color

A handy person says:
I know the part I need (S500-29) however it is asking me to select a color (red or green). My old tip that was standard with the Harcar window is white. I have used the above part in other windows, but do not know which color to choose.

Thank you.
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Tom from SWISCO responded:
Thank you for posting! Can you please give us the weight of your sash? The tip color dictates what weight your spiral balance can support.
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Donna from SWISCO responded:
29" Series 500 balances with Red Tip will carry a window sash weight range of 7 through and including 29 pounds.

29" Series 500 balances with Blue Tip will carry a window sash weight range of 12 through and including 31 pounds.

This information is based on 2 balances per sash. Balances are designed assuming friction in the jamb weather-strip will carry a portion of the sash weight. Suggested sash weights are approximate.
A handy person says:
Thanks for your speedy reply.

After I had asked the question I was able to find the information, on your site, I needed and ordered the balances. Red tip works well for my needs.

Thanks once again.
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