content: For a 1/2" slip-mount installation, this diverter spout is not worth the trouble.You must unscrew the diverter's plastic nipple, remove a plastic adapter, slide it on the copper pipe, screw the plastic nipple back on, tighten the screw so as to punch a hole in the plastic, slide the plastic nipple back toward the wall, tighten the screw, and then screw the spout on after applying thread tape. That seems straightforward, but in practice it's very difficult.The problem is that the plastic nipple is too small to fit 1/2" copper pipes longer than about 1" from the wall. The instructions say that the pipe can be up to 2-3/4" long, but actually this is wrong. At first I struggled with trying to install it, then broke the plastic when I could not force it to go all the way in.I elected instead to go withMoen 3808BN Kingsley Slip Fit Tub Diverter Spout, Brushed Nickel, which simply slips in and then tightens with a screw, with almost no effort.