Primus toilets eliminate the tank and work completely without electricity, saving you space and the world resources. Thanks to our patented VACUUM V FLUSH that is integrated into the ceramic, Primus only uses 5l per flush. It also features a silent seat and our Easy Clean glaze that makes cleaning it a breeze. Clean, elegant, distinctive. Primus embodies the principles of reductive design – from its ergonomic proportions on the outside to its state-of-the-art technology on the inside.