Features: This R1234YF to R134A adapter kit features brass construction, ensuring leak proof performances up to 50MPa for safe conversions in automotive AC systems. Precisions engineered mechanism enables easy installation, with compliant fittings that maintain connection across 95% of R1234yf equipped vehicles. Professional mechanic and automotive technicians rely on this conversion coupler for efficient line servicing during AC maintenance, retrofits, or emergency repairs. For high/low pressure line compatibility in modern vehicle AC systems, it simplifies charging and hose connection tasks in workshops or mobile service scenario. Thickened 3mm brass wall and spring lock technology outperform traditional threaded couplers, delivering faster operation while resisting deformation under extreme temperature fluctuations. Specifications: Product material: Copper Package Includes: 1 Set Quick Coupler Adapter note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.