Milgard Casement window exterior bubble seal

A handy person from Kauai says:
July 7, 2023
They're series 5520 C-C20/C-C40?

I've attached photos of the channel the seal slides into and measurements of the seal.
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A quick learner from Kauai says:
July 7, 2023
I've attached photos of the location of the seal and dimensions/profile.
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Emily from SWISCO responded:
July 10, 2023

Thanks for reaching out to us. We've come across this seal before but I'm afraid we were never able to track down a good match. The options I've related on this page appear to be our best options but they are still very different so we're not optimistic they would work. I am very sorry for the inconvenience. 
Kerf Mount Sweep Seal, 8ft length
Kerf Mount Sweep Seal, 8ft length
58-200
$21.40
25ft Kerf Mount Bubble Seal, 5/16"
25ft Kerf Mount Bubble Seal, 5/16"
58-053
$15.57
25ft Bubble Seal, 3/16" x 11/32"
25ft Bubble Seal, 3/16" x 11/32"
58-135
$15.57
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