1. Made of Quality Materials: Whether you need to use R1234YF or R134A refrigerant cans, this adapter is compatible with both. It is crafted from solid brass, ensuring strength and durability. You can reuse it frequently without worrying about wear and tear. It's a handy and versatile adapter for your refrigeration needs. 2. Wide Range of Applications: This R1234YF to R134A adapter can convert R134A to R1234YF, improving work efficiency. It is widely used for 3way R1234YF/R134A AC manifold gauges and car R134A charging hoses. 3. Refined Craftsmanship: The adapter features a smooth finish and is heatresistant, rustproof, corrosionresistant, pressureresistant, and not prone to breaking. 4. Easy Installation: Equipped with rubber seals and deep, precise threads, this adapter provides enhanced leak protection. It is also userfriendly, making it convenient to install and remove from your car's AC system.