How do I pick size of spline

A home owner from NJ says:
July 14, 2023
What size spline do I use for anderson window? The channel looks to be about 1/4 inch wide
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Tom from SWISCO responded:
July 14, 2023

I'm afraid Andersen uses many, many different types of spline. At this stage I have no basis by which to make a recommendation.

Your next step should be to remove a small, undamaged sample of the original and show me a clear picture of the end profile. I can then check our inventory for a possible match. The video below will clarify exactly what we need to help.
A home owner from NJ says:
July 15, 2023
Maybe I am missing something or more probably not asking the right question. I am (planning on) replacing the screen on my Anderson window and I watched your "how-to" video. In it, the original metal screen retainer was removed and unusable. A flexible spline was used in it's place to retain the screen in place to the frame. You have several different sizes of this spline on your website and I want to know which size I should get that is the proper fit for a channel that is approx 1/4 inch wide.
Thanks!
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Tom from SWISCO responded:
July 18, 2023

I see, thank you for clarifying! The spline we use for this specific video is the .250 59-250. Hopefully this answers your question, but please let me know if you need anything else.
.250 Foam Screen Spline, 25'
.250 Foam Screen Spline, 25'
59-250
$5.20
How to Re-screen an Andersen Window Screen [1080p]
How to Re-screen an Andersen Window Screen [1080p]
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Identifying Replacement Weatherstripping
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SWISCO Foam Screen Spline
SWISCO Foam Screen Spline
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