Do you have anything shorter like the 10-321?
A quick learner from Biloxi, MS says:
April 30, 2011
Do you have a t style strip that is 3/16" and 3/4"? It is basically just like your product code 10-321 but it is 3/4 instead of 1 inch like yours.
Dave from SWISCO responded:
May 2, 2011
We currently do not offer a shower door seal like the 10-321 that measures 3/4" in height. However, you may be able to use a utility knife to cut off the excess 1/4".