Window glazing bead

A home owner from Texas says:
Looking to replace a lot of this beading! Measuring is not my strong point, however here is what I have on this piece:
7/16 across bottom
1/4 straight side
1/2 slanted side

The windows are original to the house, built in 1977; there are not any marking on the window or frames.
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Paul from SWISCO responded:

There are two types of snap-in glazing bead that could possibly work for your part: our 55-006 and 55-196. Look over each one's measurements to see if either of these are a match for you.

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