Searching for .421 flat screen spline

A quick learner says:
.421 flat screen spline for an andersonn forever storm door screen insert. Sorry no photo
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Bob from SWISCO responded:

Take a look at our 55-109. Compare with your old spline and see if you think this is what you need.

How to rescreen a Forever Storm Door insert
How to rescreen a Forever Storm Door insert
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Close-up of 55-109 Screen Spline Install
Close-up of 55-109 Screen Spline Install
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How to Re-screen an Andersen Window Screen [1080p]
How to Re-screen an Andersen Window Screen [1080p]
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