It is designed for using to connect with polyethylene, nylon and PU . Reducing union coupling for connecting two hoses with the differrent diameter in a straight run.Connects to a hose on both ends. Hose fittings are used in systems such as air compressors, automatic manufacturing operations, aircraft controls, and tire installation in industries including agriculture, mining, road construction, firefighting, and aviation. Features - Color: Golden. - Material: Brass. - Size: 4 x 0.6 x 0.6 cm/1.6 x 0.24 x 0.24 inch. - It is designed for using to connect with polyethylene, nylon and PU . - Simple push in design for connecting to the tube and provide secure connection, requires no extra sealing. - Brass for corrosion resistance, at high temperatures, and low magnetic permeability. - This straight connector has barbed ends to create a tight seal on a hose when used with a hose clamp or crimp sleeve or ferrule (not included). - Hose fittings connect, control, change the direction of, and terminate the piping and hose systems. - Hose fittings are used in systems such as air compressors, automatic manufacturing operations, aircraft controls, and tire installation in industries including agriculture, mining, road construction, firefighting, and aviation. - Reducing union coupling for connecting two hoses with the differrent diameter in a straight run. - Connects to a hose on both ends. Package list: 10 x Gas Tube Connectors