Hudson Reed SA30049 temperature control handle for Ultra Twin and Triple shower valves. The handle is designed to fit SA30049 cartridge heads that have 24 teeth and are approximately 9.6mm in diameter.The temperature control handle is made from a white glazed ceramic and chrome plated stainless steel.Used on the following shower valves: - A3007 Hudson Reed Shower Valve Diverter - Ultra Concealed Twin Thermostatic Shower Valve - Ultra Twin Control Thermostatic Shower Valve - Ultra Triple Control Thermostatic Shower Valve - Ultra (formerly House of Amber) Jupiter A3004Dimensions and Tech information: - Width of body handle at widest points: 62.2mm - Total Length (from top to bottom): 42.6mm - Total Number of Teeth: 24 (which measures about 8.8mm on the handle, which will be approximately 9.2mm to 9.8mm on the cartridge spindle head