Introducing the Harris Calorific VWR Outlet Needle Valves, designed for precision control in gas regulation. These brass valves feature a 6.4 mm (1/4 NPTM) inlet and outlet, ensuring compatibility with various gas systems. The robust construction guarantees durability and reliability, making them ideal for laboratory and industrial applications. With their fine-tuning capability, you can easily adjust gas flow to meet your specific needs. Upgrade your gas regulation setup with these essential accessories for enhanced performance and safety. Perfect for professionals seeking quality and efficiency!