A quick learner from Texas says:
August 2, 2015
This is the bubble weatherstripping at the bottom of my windows. The channel if fits in is 1/8 inch. The measuring the bubble diameter at 9/16.
Dave from SWISCO responded:
August 4, 2015
I can't seem to find a bubble seal like this with that same lock in leg. Take a look at our 58-053 and see is that kerf leg would lock into you window.