It's also possible to remove them and reuse them. Often it is tough to get the outdated nut and ferrule off from the pipe; In cases like this, you are able to remove them having a compression sleeve puller. Compression valves are available for lower costs at most hardware shops. https://augustashqz.blog-a-story.com/10551215/5-tips-about-angle-stop-valve-pex-you-can-use-today