The fuel tank outlet are made from 316ss 40 mesh gauze and have been created by a fallow Europa builder Pat Tunney From south Manchester, Web Site www.europaxs.com. He has made la really nice job. We both fell the original Europa Gauze is too big and felt as though a finer gauze would be better. To compensate for the finer gauze the Finger Strainers have been made to a length of 75mm. The only problem with this is that they are not easily removed for servicing.