Sorry chaps, its not a product, its simply the profile of the cover gasket area, that you could use in your own CAD package, to design a vented product.
I did yesterday manage to change my timing belt, it was a tough to get on the sprockets, even with the idlers removed. Sore thumbs today.
However, I did think of this a moment ago.
Stainless steel metal powder sintered microporous filter material
