How to attach PEX to copper pipes?

To attach PEX to copper pipes, you can use a push-to-connect fitting specifically designed for this purpose. These fittings have a PEX side and a copper side that can be easily connected without the need for soldering or special tools. Simply push the PEX pipe into one end of the fitting and insert the copper pipe into the other end. Make sure to follow the manufacturer's instructions for a secure and leak-free connection.