How do we measure to determine if we need the .187 58-182 or 270 58-171 Tseal?
.187 vs .270 T Seal Measurement
Quick Learner from Sandpoint, ID
Oct 26, 2018 2:51 pm
7 Replies
Casey from SWISCO
Nov 2, 2018 2:54 pm
Hello! That's a great question. Those measurements describe the width of the "T" strip that will fit into the kerf or groove of your window or door. The diagrams below will hopefully provide a good example of what you need to measure.
Profile diagram of 58-171
Profile of 58-182
Quick Learner from Bentonville,AR
Dec 3, 2018 2:55 pm
Is the .270 and the .187 in mm or inches?
Paul from SWISCO
Dec 3, 2018 2:58 pm
Both products are measured in inches.
Quick Learner from Mo
May 27, 2025 10:46 am
My old bulb measured 1/4 where can I find this
Tom from SWISCO
May 28, 2025 12:17 pm
We unfortunately don't sell a weatherseal in this design with a 1/4" bulb. Can you verify that size? Can you also show us an end profile photo of the original?
Handy Person from Long Island
Jul 8, 2025 1:39 pm
Mine too appeared to be 1/4 inch but under closer inspection determined it to be slightly larger so ordered the larger size. We'll see?
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