Insert the top from the PEX about the end on the fitting. Slide the top of your PEX tubing that has the crimp ring or cinch clamp on it above the end on the fitting that you choose to screwed onto the copper tubing. Drive it on so far as https://copperelbow08640.mpeblog.com/54981211/top-latest-five-1-2-copper-90-elbow-urban-news