double hung tilt window bottom weather seal

A handy person from pittsburgh pa says:
this is a bottom seal on a double hung tilt window. it looks like a bubble seal of some type. the part above the bubble looks to be about a half inch and the bubble itself is about a half inch.
User submitted photos of weather seal.
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Paul from SWISCO responded:
It's hard to say. This is a pretty unique shape. See our 58-182 and carefully go over our dimensions. Could you use this as a substitute?
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