White air vent stop for Schuco Windows

A quick learner from Upstate New York says:
Looking for replacement air vent stops for Schuco windows purchased in 1999.

On side of existing air vent stop has the number 26. The other side has PAT #4,923.230 & PAT # 5,248.174, then offset from last PAT #, the number 18 (please see attached images).

Thank you in advance!
User submitted photos of a vent lock.
Profile picture of Paul
Paul from SWISCO responded:
Please see our 26-122 and let me know if its dimensions match up to your sample.
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