Delta faucets shower – First to Delta faucets shower, connect the end of the wall of the shower arm flange shower. Then, with the water still off, connect the shower arm to upper water outlet. Apply Teflon tape to the threads of the shower arm and screw the shower head. Do not tighten the shower head too. If the tub spout requires a slip-on installation, the copper tube should be half inch nominal copper. Slide spout over copper tube flush with the finished tub or wall. Tighten the screw to secure the pipe, but do not over tighten. If the tub spout of Delta faucets shower requires an iron pipe installation, install the threaded nipple pip spread beyond the finished wall. Wrap Teflon tape around the threads of the nipple and screw the outlet pipe. If the tub spout of Delta faucets shower requires a copper sweat installation, remove the O-ring adapter and weld the adapter tube, taking care not to weld too close to the O-ring groove. Trim excess tube and replace the O-ring into the groove of brass adapter. Pass the tub spout adapter without damaging the O-ring and hand tighten until spout is firmly against the wall.