replacing weatherstripping in non removable windows

A quick learner from charlotte nc says:
November 22, 2017
I bought 2 rolls of the 5/16 kerf mount weqtherstripping to repair 17 year old Caradco windows in my house. It is an exact match to the original but I am unclear how to get it seated properly in the slot on the bottom of the bottom window without being able to remove the window. The window has a label on the upper track that I have photographed and included.

Any suggestions??
sticker
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Tom from SWISCO responded:
November 28, 2017
I'm not sure what it is you purchased. I see you were looking at our 58-053, is this what you're trying to install? If so, this just pushes into the slot. There's no real trick to it. What problem are you running into, exactly?
A quick learner from charlotte nc says:
November 28, 2017
I did purchase the 58-053. Since I can
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Tom from SWISCO responded:
November 29, 2017
I'm afraid your post got cut off. could you try again?
25ft Kerf Mount Bubble Seal, 5/16"
25ft Kerf Mount Bubble Seal, 5/16"
58-053
$15.57
Identifying Replacement Weatherstripping
Identifying Replacement Weatherstripping
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