Features: Professional 3 way HVAC manifold gauge set delivers precise pressure monitoring, featuring 5ft reinforced hoses and self sealing can tap for leak proof charging. Double gauge system with color coded scales measures high/low pressure sides simultaneously, paired with corrosion resistant couplers and a puncture tool for various hvac maintenance. Ideal for automotive technicians, hvac specialists, and DIYer enthusiasts servicing car HVAC units, residential refrigerators, or commercial refrigeration systems. Optimize diagnostics during HVAC recharge, system evacuation, or troubleshooting refrigerants leaks in garages, workshops, and hvac installation sites. Engineered with shock resistant brass component and ergonomic valves, this gauge set ensures long term durability and measurement accuracy under extreme pressure fluctuations. Specifications: Component:Metal+Plastic Size: Approx.20x16.5cm/7.87x6.49inch For R134A R22 R502 Connection type: threaded connection; Package Includes: 1 Set HVAC Manifold Gauge note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.