Window bottom seal

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Home Owner

Apr 15, 2025 2:05 pm

What seal do I need? Outside bottom sash seal on a Simonton vunyl window I think it's 58-183

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Jasmine from SWISCO

Apr 16, 2025 10:04 am

Thanks for writing in! It does appear the 58-183 T-Slot Offset Hollow Foam Seal is the replacement you need. Although, you'll need to remove it and compare the dimensions and design to confirm this, with certainty.

If they are not a match, you may need to consider the 58-171 as a replacement. It is not hollow but should still work so long as the measurements match your seal.

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