Introducing the Mass Pro Straight R410A Refrigerant Charging Valve, a must-have accessory for air conditioner maintenance and servicing. This brass adapter is designed to fit R410A air conditioner manifolds with a 1/4" Male to 5/16" Female connection, providing seamless compatibility. Crafted from high-quality brass, this R410A control valve adapter boasts exceptional strength and durability, ensuring long-lasting performance. With its sturdy construction, it effectively withstands the pressures and demands of refrigerant charging operations. Installation is a breeze with this refrigerant charging valve. Simply attach it to the end of a charging hose, and you're ready to go. By utilizing this valve, you can minimize refrigerant loss during servicing, ensuring efficient and effective maintenance of your air conditioning system. The adapter features a 1/4" SAE connection on one end and a 5/16" Female Thread on the other, providing a secure and reliable connection. This versatile design allows for easy integration with various refrigerant charging setups. Whether you're a professional HVAC technician or a DIY enthusiast, this R410A refrigerant charging valve is an essential tool for your air conditioner maintenance toolkit. It streamlines the charging process, making it more convenient and efficient. Don't compromise on quality and reliability. Choose the Mass Pro Straight R410A Refrigerant Charging Valve for its exceptional performance and durable construction. Add it to your cart now and experience hassle-free air conditioner maintenance like never before.