Material: Made of 304 stainless steel, corrosion resistant ductility at high temperatures, and low magnetic permeability. Size: 3/8”Barb x 3/8”Barb x 3/8”Barb Fitting connects to hose on all ends. Barbed fitting creates a tight seal on flexible and semi-rigid hose when used with a hose clamp or crimp sleeve or ferrule (sold separately). Hose fittings are used in systems such as beer brewing, air compressors, automatic manufacturing operations, aircraft controls, and tire installation in industries including agriculture, mining, road construction, firefighting, and aviation. This hose fitting is made of 304 stainless steel and connects three lengths of hose in a branch tee. Barbed fittings create a tight seal on flexible and semi-rigid hose when used with a hose clamp or crimp sleeve or ferrule (sold separately). Hose fittings connect, control, change the direction of flow, and terminate the flow in piping and hose systems.