balance series 305 tip color

A home owner from florida says:
balance is 18" window weight is about 8 pounds( is 41"x 40" ) no scale .sorry ,need to know what is the tip color I need .Thanks
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Tom from SWISCO responded:
If your window is only 8 pounds, then the Red Tip option should be fine, which is exactly what the S305-18 comes with by default. However, without knowing for sure what your sash weight is, I cannot guarantee that this is correct. Weighing your sash is the only way to be sure.
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