Need the gasket or I can just replace with water shield

A handy person from California says:
Gasket is missing. Do you have one? Looks like it screws behind the water shield. Should I just put a whole new replacement shield with gasket?
User submitted photos of a shower door sweep.
Profile picture of Paul
Paul from SWISCO responded:
I don't think we'll be able to get this specific gasket. I think you'll find it easier to simply replace the whole sweep with a drip rail. See our 10-325, 10-325 and 10-326 for three possibilities.
SWISCO Shower Drip Rail with Sweep
SWISCO Shower Drip Rail with Sweep
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