Window weatherstripping

A quick learner from Dublin, OH says:
Hi, I'm trying to find replacement pile weatherstripping for vinyl clad windows that are about 30 years old. The base looks to be about 7/32" and the pile 5/16". The base slides easily in the track, so it may have shrunk over time.The pile appears to be wool, but I am not sure about that. The pile is separated into 2 parts by a fin of some sort shown in one of the photos.
I would appreciate any help you can give in knowing what to buy.
Thanks.
Geoff
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Emily from SWISCO responded:

Hi there, Geoff.

Our 58-158 pile weatherstripping appears to match your dimensions precisely. Look this part over and see what you think. 

If you have any questions just let us know!

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