Features: Ensure a secure and leak prevention refrigerants recharging with our Quick Coupler Adapter, designs for efficient A/C system maintenance. Crafted from quality brass, this adapter offers high wear and corrosion resistance, featuring precisions threading and a builts in seal to prevent refrigerants loss. Ideal for professional HVAC technicians and DIY enthusiasts with basic air conditioning maintenance knowledge. Perfect for routine automotive A/C system maintenance and repairs, enhancing efficiency during refrigerants recharging tasks. This set of adjustable high/low pressure side manual adapters is a essential tool for any comprehensive A/C service kit, ensuring great performances. Specifications: Component: Brass Optional Color: A Blue-Low Pressure, B Red-High Pressure Size:As pictures shown. Quantity: 1pc Package Includes: 1pc Quick Coupler note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.