This special 4-port fitting can simplify a complex braking system. All four ports have 3/8-24 (3AN) female threads with a concave seat. Use 3AN male fittings or 3/8-24 tube nuts with a convex (bubble) flare. A mounting lug is provided to anchor the junction in place. High-pressure brass construction matches OEM tube nuts.
Note that this fitting is not configured as an X (all four ports are not in the same plane). Three of the ports form a tee, with the fourth port at a 90 degree angle to the others.