140km run no leaks, so either a couple of dodgy seals or I stuffed up the fitting any way all good, yesterday I spoke to Wesfill, they said they would send me a couple of O rings, which I thought was good as I used the ones off my spare filters, postie delivered these just after lunch today ................ Big surprise and certainly can't complain about WesfilCoopers warranty one little bit ... they were already my Go To for filters and certainly be for sure now.