6 Roca Rimless® Vortex Maximum hygiene Technology that eliminates any rim around the bowl and generates a full-surface cleaning with a 360º flow that ensures more effective hygiene, above EU standards. A design for easy cleaning and minimal water consumption. Technology In-Tank Without cistern New WC concept that integrates the water tank into thebolw. Easy installation All-in-one solution that simplifies the installation process minimising maintenance work. Space-saving One piece design that takes up less space and allows greater freedom in the design of bathroom spaces.