True AN-spec Tee fittings are only available with all male ends or non-swivel female ends that require an O-ring seal. They are great for some applications, but the rest of us end up stacking adapters and female-to-female unions to get where we need to go.
This special motorsport Tee fitting has one male 8AN (3/4-16, 37° convex flare) fitting at one end of the run and female 8AN swivel fittings on the branch and on the other end of the run. This design is ideal for branching a hose or accessory off of an existing male fitting. The swivel nuts allow you to tighten the fitting without turning the sealing seat, preventing flare damage. Black anodized aluminum. Sold individually.