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I am in the process of building a dual snorkle airfilter.

after I just painted the airfilter new I like to renew the 2 vacuum diaphragms on each snorkle side.
I tried to clean them - but this is not fully satifsfying, so I thought to buy new ones.
But I am not sure about the correct product number...
CX-898 E3FZ9D612A
CX-519 E1SZ9D612A


https://photos.app.goo.gl/FVKRsZIFIwPnoasm2

https://lh3.googleusercontent.com/Pwn3l ... 77-h808-no


any Information on that?
Thanks