Window balancer retainer clip

A home owner from Lumberton, NJ says:
I am trying to replace dry-rotted clips that retain the balancers to the window frame. I attached photos of the existing clips. I believe the windows were manufacturer by Ply-Gem in 1994 or 1995. The pieces started out white. Can you help?

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Tom from SWISCO responded:

Hello! We call this part a "top sash guide." Yours in particular appears to match our 18-124P. I feel confident that this is what you want, but let me know what you think!

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