Sheet Metal Expert Saddles are constructed of 24 gauge Glavanized Sheet Metal with bent spot welded tabs. The seam around the branches are caulked.
Saddles can be used in situations where your system is already set up and you need to branch off. With a saddle, you cut a hole in the existing pipe and place the saddle over the hole. Keep in mind that the branches should come off the side of the pipe, not the top or the bottom.