After checking the log book, the fuel lines were replaced 18 months ago, and there doesnt seem to be a brand name on the lines but it does have in big letters made in the USA stamped all over them. re the filter I have been using a plastic throw away filter, changed every 10 hours, which made it hard to detect any major problems, I now have a glass filter before the disposable, so I can detect problems, love overkill these days. Thanks for the all the support