Mega Quick Pipe Splice - 1 1/2 Silver quickly joins two pipes in line together without drilling or threading for permanent or temporary installations. The Mega-Quick Pipe Splice is the same outside diameter as the pipe for a nice flush look and feel. Install by loosening the set screw one half turn with a quarter inch hex key to open the splice. Align the set screw so that it will be on the side of the pipe joint. (This will give the maximum strength to the joint.) Pinch the bars together at one end, and insert the splice into the first pipe. Then pinch the other ends of splice together and insert the splice into the second pipe. Slide the pipes tight toward the splice and tighten set screw securely with the one quarter inch hex key.