Source of carb vent filters?

[d2w]

Someone mentioned on this forum that they used minature air filters on the four vent lines of their carb. Since these lines vent the carb, it seems like a good additional way to keep dirt/grit out of the carb.

I searched for the original post, but I couldn't find it.

Does anyone have a manufacturer/model number of a suitable miniature air filter?

Thanks.

Dale