Plastic window guide

A handy person from Orlando FL says:
These plastic pieces keep the windows from sliding
Down pass the track that holds them. They are approximately
1 inch long by a half in wide. They are on my moms screen porch
User submitted photos of window hardware.
Profile picture of Paul
Paul from SWISCO responded:
Take a look at our 67-010. Do you think you could use this as a replacement for your broken guide?
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