307 Standard

Built strictly to 307 Standard specifications, this 1/2 inch aluminum flare nut delivers precision threading and robust wall thickness for critical HVAC and refrigeration piping networks. It forms an airtight metal-to-metal seal when mated with standard 45-degree flared copper tubing, preventing costly refrigerant loss over years of heavy cycling. Its corrosion-resistant material construction guarantees reliable performance even in moisture-prone condensing unit compartments and outdoor environments.