Yeah its suppose to go to inverted flare , and its 1/4 npt thread on fuel pump side , , good hardware stores aint what they use to be , as tried a few but not quite finding what I need just yet , I know my fuel line is 1/4 size as well as it will screw into pump , just havent found a correct fitting locally yet that adapts to the inverted flare ,, I ordered what I thought was correct online but the inverted side was incorrect , could have been my mistake in the ordering