Weather stripping on the bottom exterior of double hung window

A home owner from Spirit Lake Iowa says:

March 19, 2018

I have CertainTeed (BrynMawr II) windows that were installed about 15 years ago. Those in the more direct sunlight have shown deterioration to the non-vinyl parts. I want to replace some of the weather stripping. These picture are of what I think you call bubble seal weather stripping. Measuring it, it seems to be 1/2" tall and 1/2" wide. (There is also wool pile weather stripping, and I think something else, but one thing at a time.)
I would appreciate it if you can specify the correct weather stripping for these window.
Thanks
Tom

User submitted photos of weatherstripping.

Tom from SWISCO responded:

March 23, 2018

I'm afraid I cannot identify what you have based on this photo. I will need you to remove a small sample and show us a clear picture of its end profile. That way, we can see the shape. Let me know whenever you can.

A home owner says:

March 23, 2018

Sorry, clipped a piece, but was not able to get a good picture. I can now better see the dimension, which are 1/2" tall and 1/4" wide. The bottom front of the sill has a small track that the stripping slides into. I will have to take another approach to finding the piece.

A home owner from Spirit Lake, Iowa says:

March 25, 2018

I have been unable to take good pictures; however, another post seems to have the same window as I do. It is dated Aug 28, 2015 and is from Pennsylvania. The product 58-182 .187 T-Slot Foam Filled Bulb was the last recommendation for his situation. Do you still feel this is the best bet? If so, it should also work for me. His picture is uploaded here.

Tom from SWISCO responded:

March 27, 2018

Ah, I see. If you have this style, then the 58-182 is one of our options, yes. Ultimately, it would come down to your measurements. The most important measurements for the 58-182 are the size of the bulb and the size of the "T" shaped flap. Comparing those measurements to your own is the only way to confirm if it will work. I will post those measurements here for you.

Profile of 58-182

Keep in mind that this is just one option. We have a couple others that may work, but again it would depend on measurements. I've made a list of all possible options on this page for you to look over.

A home owner from Spirit Lake, Iowa says:

March 27, 2018

Yes, all are close. My stripping is so deteriorated that it is difficult to get a good measurement. CertainTeed just got back to me and the rep suggested your 58-182 as the closes fit.
Is it possible to get a small sample of each of those you listed to test them out and determine which is the best fit?
Thanks.

.187 T-Slot Foam Filled Bulb Weatherseal,12ft

58-182

$15.20

.270 T-Slot Foam Filled Bulb Weatherseal,12ft

58-171

$17.99

39" Dual-durometer Weatherstrip

58-164

$6.16

.187 T-Slot Offset Hollow Foam Seal,12ft

58-183

$16.70

Identifying Replacement Weatherstripping

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