The Brennan 2603-FG series MJ tee fitting is made of forged steel and has JIC male connectors. This tee fitting is T-shaped and has three openings to connect and branch three pipes, two on the main run and one branch at a 90-degree angle from the middle of the tee. Pipe dimensions for tees are represented as A x B x C. "A" and "B" indicate the main run on the fitting, and "C" indicates the branch. It has Joint Industrial Council (JIC) flared male connectors for connecting to female JIC pipes on all three ends. It is made of steel for weldability and rust resistance and is forged to increase the material's strength and resistance to mechanical shock and vibration. This fitting meets Military Specification 51510 for standardization, and Society of Automotive Engineers (SAE) standard 070401 for quality assurance.

Pipe fittings are components used for connecting, terminating, controlling flow, and changing the direction of piping in many different industries. Push-to-connect compression fittings do not require tools or sealants, and are useful in installations where a heat source, such as a soldering torch, is prohibited. When purchasing pipe fittings, consider the application, as this will affect material type, shape, size, and required durability. Fittings are available threaded or unthreaded, in many shapes, styles, sizes, and schedules (pipe wall thickness).

Brennan Industries manufactures critical flow components. The company, founded in 1953 and headquartered in Solon, OH, meets International Organization for Standardization (ISO) 9001:2008 standards and its fittings meet Society of Automotive Engineers (SAE) specifications.