Crafted from brass ensuring high pressure durability, suitable for R134A, R22, R407, and R600 refrigerant With leak threaded connectors and seamless compatibility across multiple cooling, this brass adapter maintains structural integrity in extreme temperature environments. Ideal for professional HVAC technicians and enthusiasts maintaining residential/commercial refrigeration units, air conditioning repairs, or industrial cooling installation. Perfect for refrigerant recharge operations, routine appliance maintenance, or upgrading aging cooling equipment in both household and commercial settings. Each brass refrigeration fitting undergoes rigorous pressure testing to guaranteeing, meeting standard for refrigerant handling and longevity.