Dunno if other places have this bag but it works nicely. I just used it to dry hop a beer with pellets and didn't notice any debris in the beer when racking into the keg and don't see any debris now that I'm drinking it. The mesh is super fine, more fine that normal hop boiling bags that I have.
As a side note, these guys at Hop and Grape are pretty great. Customer service is great and they have a really nice selection of hops and yeast for people in Europe.