Flat screen spline for storm door

A professional from Lyndonville Vermont says:
I have what I believe is an Anderson storm door that I am trying to rescreen for a customer. I need to get the flat screen spline for it. The width of the channel for the spline is.334. I am wondering if I should be using product #59-241 or #55-109. They both look like the right width. Any help you can give would br greatly appreciated. Thanks much.

Ray
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Paul from SWISCO responded:
Hey, Ray. I think the 55-109 is your best choice. This is used in the Andersen storm door.
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