BATHROOM COLLECTION / THE GAP 83 Rimless technology Roca presents a new type of WC with Clean Rim technology (without rim) to offer a better flush down distribution. The Gap The Gap bathroom collection / Hotel 2.0 accessories Conventional Clean Rim Innovative design, higher efficiency With its rimless innovative design, Clean Rim allows the water flow to circulate along the whole inner perimeter, achieving a higher efficiency. Moreover, Clean Rim does not have furrows, edged angles, corners or gaps in the surface, resulting in easier cleaning and achieving a higher hygiene level than other conventional WCs.