How do you connect a refigerator water line to a 1/2 in pex line water line?

Hi Buddy

Since there are so many different types of PEX out there nowadays I cannot give you specific examples for your particular PEX type. I can, however, tell you about a universal system that will work with any PEX, OK? These fittings, called sharkbite or gatorbite fittings fit PEX tubing and simply PUSH onto the pipe for final connection.

Home depot sells a 1/2" sharkbite x 1/4" compression shutoff... see image. This should be all you need!

Mark