PACKAGE INCLUDES - Each package contains one pack 1/4" and 3/8" Air Conditioning Pipe Coupling Adapters with HVAC flare nuts, providing you with everything you need to get started on your project. Our copper flare fittings kit ensures a perfect fit and a reliable connection for your copper piping needs. 100% SOLID COPPER - Our copper flare fittings are expertly crafted from premium solid copper, ensuring unmatched durability, resistance to corrosion, and anti-rust properties for long-lasting reliability. SPECIFICATIONS - Perfectly sized for copper pipe extensions, these fittings are compatible with copper pipes of 1/4" (6.35mm) and 3/8" (9.53mm) diameters, making them versatile for a variety of applications. APPLICATION - Designed with precision for the HVAC industry, these copper pipe connectors offer a seamless solution for joining copper pipes without the need for welding. The secure fit can be easily achieved using a wrench, ensuring a durable and robust connection. Ideal for use in fuel and gas systems, plumbing, refrigeration, and vacuum applications, our fittings provide the reliability you need. EASY TO INSTALL - Extend your AC copper tubes effortlessly with our fittings. These DIY-friendly copper pipe extensions can be installed using common household tools, eliminating the need for specialized welding equipment. This user-friendly design ensures a hassle-free installation process.