The tube fittings are designed to connect copper pipes, ensuring a secure and leak-free connection. This brass tube fitting is suitable for use in HVAC systems and water pipelines, widely used in plumbing work.SpecificationColor: Brass ToneMaterial: BrassThread Size: Male 1/2 inch SAE,suitable for connecting 1/2″ OD copper pipes.Connector Diameter: 18.8mm / 0.74 inchOverall Size: 41 x 41mm / 1.61 x 1.61 inch(L*H)Packing List: 2 x Brass Pipe Fittings, 4 x NutsAdvantageMade from quality brass, this fitting is durable and can withstand the harsh conditions of HVAC systems. With 45-degree flared construction, it allows you to connect copper pipes without soldering, bringing convenience to maintenance work.