Asahi Pottery QAA003 Single Lever Shower Mixing Faucet for General Areas [Eco Damon] Notifies you with a click when switching between water and hot water. Use hot water properly. Mounting hole diameter: 1.4 - 1.5 inches (36 - 39 mm) / JIS standard product / Shower / Foam switch / Hose pull out type / Lift up mechanism