U-shaped bubble seal

A quick learner from Minnesota says:
Do you have a bubble seal to replace this? 5/16".
User submitted a photo of bubble seal.
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:
I recognize this bubble. I'm afraid we've never been able to find this exact type, but our 58-053 and 58-055 are very similar. Do you think you could use either as a substitute?
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