. The last word in fuss-free installation for your wall-hung toilet this GROHE Solido 4-in-1 installation set for wall-hung toilets is reliable & strong for total peace of mind. The steel frame is certified to hold loads of over 400kg for ultimate stability & it can be installed in front of a solid wall or within a stud wall in next-to-no-time thanks to the GROHE Quick Fix system which requires no tools to connect hose inspection shaft & water supply. The GROHE Eco Joy dual flush system is kinder to the environment reducing water consumption by up to 50%. Noise transmission to the building is kept to a minimum thanks to GROHE Whisper technology engineered with low-noise fittings. Features. The GROHE Whisper concealed cistern guarantees noise control GROHE Eco Joy – eco-friendly water-saving design Spare Flush – an effective extra flush Easy connection – no tools needed GROHE Quick Fix – quick & easy installation Safety is the name of the game with your GROHE Solido installation system. The steel frames of the wall-hung toilets & basins are certified to hold up to 400kg & 150kg respectively..