For bathrooms with tall ceilings, this 12″” ceiling-mount shower arm allows you to install a Modern Rain or Square Rain showerhead lower in your shower for a more gentle rainfall. Extendable shower arm for ceiling application. 1/2-inch NPT thread. Fits virtually all showerheads. Fully covered limited lifetime warranty Constructed from solid brass Superior finishing process finish covered under lifetime warranty Shower Arm Length 12″ Adjustable wall flange is included 1/2″ threaded male inlet, 1/2″ threaded male outlet Ceiling mounted shower arm design for rain-shower experience. Three Years Warranty.