Phedge

Ok guys I have looked through all the forums and have found no answer. What I got is I traded turbos with a member and the the oil feed lines. The problem I am having is his line is different and I can not find the right fitting to go in the filter housing. Mine old one was a inverted flare and his uses some kind of tube with a oring on the very end of it. His was a 24 valve and mine is a 12v. Does anybody know the part # for this fitting and where I can possibly get one. Cummins dealer told me they all used the inverted flare design. I have also looked for adapters to where I can change the line and fittings but nobody seems to carry metric o-ring fittings. Thanks for any help.