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Re: Breather filter material
My breather has a spongy foam filter inside. It's probably polyurethane like this.... https://unifilter.com/online-catalog...n-air-filters/ seems if polyurethane is good enough for them it should work for you too. Here's a little block of it on Amazon https://www.amazon.com/Sculpture-Blo...a-841373556131
Last edited by AcampoDave; 10-03-2021 at 11:08 PM.
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