Watts Aqualock 1/2" O.D. Tube Quick Connectx3/8" MPT Adapter allows for quick and easy connection of multiple tubing materials, making it ideal for a variety of plumbing projects. It features a push-to-connect inlet thread type and a MIP outlet thread type, ensuring a secure and leak-free connection. With a maximum working temperature of 140 degrees Fahrenheit and a minimum working temperature of 33 degrees Fahrenheit, this adapter is suitable for use in a wide range of applications. It has FDA code approvals for safety and reliability.