Might be old info to some, but Amazon sells filters that fit the Benj. Traveller compressor perfectly, but they are NOT nearly the same density or quality as OEM filters. After 1 fill, very damp ( way worse than normal) all the way through, and oil came all the way through the filter as well. Looks like the outer 3 mm was almost disintegrating. Spend the extra $ and get the OEM filters.