Price_Pfister brand Ball End Swivel Shower Arm Adapter Master Plumber Rubber washer included. Chrome Finish. Connection Size: 1/2 in. Simple time saver. Easy to install. Convert shower arm to accept standard heads. Converts Ball End To 1/2-Inch Male Pipe Threads. Energy & Money Saving Solution. Stop the Drop! HD part # 794659 Price_Pfister brand Ball End Shower Arm Adapter Master Plumber, Shower Arm Adapter, For Adapting Standard 1/2-Inch Shower Heads To Ball Joint Shower Arms, Fits PPfister Brand, Converts Ball End To 1/2-Inch Male Pipe Threads. Takes a ball end shower arm and converts it to a standard fitting for any regular shower head. Simply screw on the end of the shower arm to convert to standard threads. Every drop counts!