It depends on the pump. Some like the "traditional" "take apart" Carters are pipe thread. Most are inverted flare, usually 5/16 inverted flare, just like a brake tube. There are various specialty companies that make these types of fittings. Most are not "standard" fittings, and it must work with the specific hose you have. Saying "it's braided hose" is not enough, you need to identify that the fitting is compatilble
