AN10 PTFE hose needs a wide bend radius, so a 150-degree fitting is often the only practical way to reverse a cooler, dry sump or high-volume fuel line close to its port. The bend lives in the fitting body and the hose runs away in a sweep, protecting the liner from kinking. The olive-and-nipple seal is common to the whole PTFE range and lets the end be stripped and rebuilt with a fresh olive. At this size the assembly carries real weight, so support the hose near the fitting. The bend orientation is fixed at assembly, so confirm the clocking before you commit.