A 90° AN6 hose end for PTFE-lined braided hose. AN6 is the workhorse size in performance fuel plumbing, carrying enough flow for most naturally aspirated and mildly boosted engines while staying easy to route, and the right-angle body is what you reach for at a fuel rail, filter or regulator where a straight end would foul the bonnet or a chassis rail. The PTFE liner is what makes this style worth using with ethanol blends and modern pump fuel, which harden and permeate rubber-lined hose over time. Use it only on PTFE hose — the ferrule design will not seal on rubber-lined braid. Take care to flare the stainless braid cleanly so no strands fold under the ferrule, and tighten to snug rather than crushing the liner closed.