Engineered: Made of - solid brass, this adapter is built to last in demanding HVAC environments. The knurled provides high friction for easy tightening even in tight spaces while also effectively preventing wear from frequent use Universal Refrigerant Compatibility: Compatible with R32 and R454B refrigerant systems, this tool connects modern mini-split air conditioners with traditional vacuum pumps and manifold gauges. A must-have for technicians servicing air conditioning units Please note: Actual product slightly in color or appearance, but this does not affect functionality. We appreciate your understanding! Seamless Equipment Integration: Equipped with a 1/4-inch SAE female threaded connection on one end and a 1/4-inch male reverse threaded connection on the other end, it ensures perfect compatibility with hoses, gauges, and recovery machines. Streamline workflow without adapter stacking R32 R454B Refrigerant Brass Adapter: Ideal for tasks such as refrigerant pumpdown, charging and system maintenance on compact HVAC systems. Licensed technicians rely on this kit for safe and efficient operation in residential/commercial settings, Weight: 0.4187460204428 pounds, Manufacturer: Hipzeepo