Hansgrohe iBox Universal - Concealed Part Only 3 Reductions 3/4" 1 Plug 3/4" Connection Thread ¾" Operating Pressure: min. 1 bar / max. 10 bar Suitable for All Shower, Bath & Thermostat Finish Sets for Concealed Installation Rotationally-symmetric installation. WRAS 0810308. WRAS 0810309. WRAS 0806313. WRAS 0809316. WRAS 0807314. WRAS 1304305.