Any plumbing project will require that you're using the materials which are most suitable and appropriate. Pipes, fittings and other equipment should be on hand so that a plumbing job doesn't take longer than necessary. Pipe fittings can be tricky to get and use because making the wrong choice can result in leaks and similar plumbing issues. Use these pipe fitting suggestions. Check Sizes Of course, ensuring a fitting will fit a pipe is important.