When transitioning pipe size, there is no easier way than with the SharkBite push-fit reducing couplings. There is no need for solder, glue, clamps or unions, simply push-to-connect and move on. This quick connect fitting is designed for potable water and radiant heating (including underground or behind-the-wall) applications with no access panels required. It is also rated to 200 degrees F and 200 psi.