Features 1DURABLE AND CORROSION RESISTANT: Made of aluminum alloy material, plated with brass, durable and corrosion resistant 2CONVENIENT AND QUICK INSTALLATION: Air compressor discharge tube adopt screw connection, convenient and quick installation 3AIR COMPRESSOR EXHAUST PIPES: This discharge tube is widely used to connect air compressors as exhaust pipes, very practical 425MM OUTER DIAMETER: Adopt M33x1.5mm thread interface, outer diameter of aluminum tube is 25mm, easy to connect 5 PERFORMANCE: Air pump head connecting pipe come with stable structure, performance and long service life Specification Item Type: Air Compressor Discharge Tube Material: Brass, aluminum alloy Thread Interface: M33x1.5mm Aluminum Tube Outer Diameter: Approx. 25mm / 0.98in Purpose: Air compressor bridge pipe Specification: Model 3090 2090 Length (spacing between 2 interfaces)(approx.) 26.5cm / 10.4in 30cm / 11.8in Package List 1 x Air Compressor Discharge Tube