LASCO 08-2471P Shower Head with 1/2-Inch Male by Female Pipe Thread and Volume Control Flow Adjuster, Polished Brass Finish Regulates water flow to shower head 1/2-Inch male pipe on one end 1/2-Inch female pipe on the other end Place between shower arm and shower head to regulate water flow Polished brass finish Use PTFE thread sealing tape for pipe connections only