Mezzo Round Cool Touch Rigid Riser ShowerWRAS Approved No TMV Approved No Minimum Operating Pressure (bar) 0. 5 Maximum Operating Pressure (bar) 5 Flexible Tails Included No Number of tap holes required N a Handle Type Round Swivel Spout N a Inlet Connection 3 4 BSP Outlet Connection 1 2 BSP Handset Tap Hole Diameter (mm) N a Tap Type description Exposed Bar Valve Includes Waste No Valve Cartridge Type Thermostatic & Quarter Turn Cartridge Cartridge Spare code 0 Flow Rates 0. 2bar (l min) 2.