1. Versatile Compatibility: Our 2PCS Refrigerant Compact Ball Valve Adapter is designed to be compatible with a wide range of refrigerants, including R410A, R134A, R12, and R22. This means you can use it for AC and HVAC systems without any hassle. 2. Precise Control: With the 1/4inch SAE and 5/16inch SAE connections, our ball valve adapter ensures a secure and leak-free connection between your hoses and the refrigerant system. It allows you to have precise control over the flow of refrigerant, making maintenance and repairs more efficient. 3. Compact Design: The compact size of our ball valve adapter makes it easy to handle and store. It 't take up much space in your toolkit or storage area, ensuring convenience and portability during installation or service calls. 4. High-Quality Construction: Crafted from materials, our ball valve adapter is built to withstand heavy-duty use. It is designed to provide long-lasting performance, ensuring reliable operation and preventing any potential leaks or damage to your AC or HVAC system. 5. Wide Application: our ball valve adapter is an essential tool for working with AC and HVAC systems. It is suitable for use in residential, commercial, and industrial applications, making it a versatile choice for all your refrigerant needs. The colors of the cap and knob are random in different batches, don't accept the specified Colour:As Shown Material:Plastic + Metal Package Contents: 2PCS Refrigerant Compact Ball Valve Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.