t-slot offset foam seal

A home owner from alabama says:
Will the product code 58-182 and 58-183 fit and seal the same window. If so, which seal is considered the best to use. My original windows appear to have the 58-182.
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Paul from SWISCO responded:
The "T" slot size is the same for these two products, but the 58-183 has an extended shelf extension, allowing the bubble to go further under the sash. Please compare that detail to your old seal.
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