In case you wanted to have replacement parts or make a spot where you could bolt on accessories, here are models of the covers.  I also modeled 2 variants that can be printed with out supports.   I have tested them using .4mm nozzle and it works well. I was holding off on the release as I am working on a grip that uses modified version of these covers, but seeing ast there are no shortage of grip solutions creeping out of the wood work, I'll just get these out.

Made with OnShape, edit it here.

Updates

On also including version with at 0.8mm thick prytab to make that print cleaner with .4mm nozzles as well. OEM parts have about a 0.65mm prytab.

Support

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I have also created this sticker set perfect for your ultrasonic cleaner:

https://shop.kactuskrunch.com/product/ultrasonic-cleaner-10-sticker-sheet