Insert the top in the PEX above the top on the fitting. Slide the tip from the PEX tubing that has the crimp ring or cinch clamp on it about the end on the fitting that you simply screwed on to the copper tubing. Press it on as far as https://copperfittings29394.develop-blog.com/38788428/indicators-on-1-2-inch-copper-street-90-you-should-know