Searching for ANSI Z-97.1.1975 1/8"-U

A quick learner says:
LOOKING TO REPLACE A VINYL BUG SEAL ON 1975 PPG SLIDING GLASS DOOR. VINLY STRIP IS 5/8" TOTAL WIDTH, WITH A 1/8" ROUND PIECE AT TOP THAT SLIDES INTO THE TRACK AT THE BOTTOM OF DOOR. THIS NUMBER WAS ETCHED INTO THE BOTTOM OF THE DOOR. ANSI Z-97.1-1975 1/8"-U AND 16 CFR1201 CII
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Tom from SWISCO responded:

I'm afraid we haven't been able to find replacement bug flap that matches your profile. Based on the age of the door, it may not be made anymore.

Believe it or not, you may want to consider shower door seal. Now, this is definitely a Hail Mary, but I couldn't find anything better. Look at our 10-320 and 10-309. These have a similar rounded kerf. It may be something you can work with. 

Sorry we can't offer a better match!

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