The Watts 1/2 Lf70a-F Mixing Valve is a lead-free brass valve designed for use with water. It features a manual valve operation and a maximum flow rate of 5.5 gallons per minute. The valve has a 1/2" size, with both end A and end B diameters measuring 1/2 inch. It is suitable for use in various plumbing applications, with a maximum pressure rating of 150 psi. This mixing valve is a hot water extender, making it ideal for extending hot water in plumbing systems. Made by the trusted brand Watts in the US, this valve is a reliable and durable solution for controlling water flow.