Vinyl snapin glazing

A quick learner from St. Louis MO says:
This is for a basement window. 3/8 U and 1/2 wide. It is similar to one of your products I order but mine has a ridge on the curved end which snaps into the window frame which is aluminum.
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Paul from SWISCO responded:

Greetings -

Basement window glazing is typically difficult to match because many of these windows are locally made. We narrowed it down to our 55-029 , 55-164 and 55-197 snap in glazing that all have ridge to lock them in the frame. Please compare the dimensions to yours to confirm if one of these is a match. 

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