APPLICATION RANGE: Brass Hose Barb Fitting is widely used to connect various pneumatic pipes, quick and simple connections, and is good for hydraulic hose, air, water, liquid, fuel, oil, and gases.DURABLE DESIGN:1. Made of brass material, firm and durable, corrosion resistance, ductility at high temperatures, and low magnetic permeability.2. T-shape barbed design, which is a coupling for joining 3 diameter sizes pipes in different direction, and can be used with polyethylene, nylon and PU tubing in industrial environments and are compatible many fluids, barbed edges provide positive connection, deeper and smoother threads design makes work easier and more effective.NEED ATTENTION:1. Before purchasing, please confirm the right size.2. Manual measurement, please allow a slight dimensional error of the item.