Fuel Leak

[Bad Dawg]

I did a search and couldn't find anything about fuel leaks like this. I noticed a few drip spots in my shop so I crawled under the H2 and found a cross member all wet with nothing wet forward of the member. Looking up above the cross member I saw what looks like a filter by the fuel tank. I'm guessing that it's a breather for the smog equipment. Anyhow, either it is letting fuel back through the filter itself or the hose connecting to it is leaking. If it's a "breather" of some kind then it shouldn't have fuel backing up into it. Anyone run into this before??