name of part and source

A handy person from Monroe County, NY says:
October 20, 2020
I think it's called glazing bead, but the plastic part that "snaps" in after you put in a double glazed into a wood window on the exterior. Like a trim piece, "L" shaped. The name would be great as well as a source!

Thanks much!
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Bob from SWISCO responded:
October 22, 2020

Hey there. I think we may be able to help, but the only reliable way to ID what you have is to remove a sample and compare its 'end profile' dimensions to our selection of glazing bead here. From there we can do our best to see if we have a match.
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