The Invisible Foundation of the Modern Designer Bathroom.

The secret to a stunning wall hung toilet lies behind the wall. Make the Roca Duplo One Full Height Installation System the go to choice for creating a clean, floating aesthetic. By concealing the cistern and all necessary plumbing within the wall structure, the Duplo One transforms a standard bathroom into a spacious sanctuary.

Engineering Strength and Quiet Performance

The Duplo One frame is engineered for absolute stability and long term reliability. The robust steel structure is built to support the weight of a wall-hung WC with ease, providing a solid foundation that eliminates movement. The cistern is encased in a protective polystyrene jacket, which serves a dual purpose: it acts as a thermal barrier to prevent condensation and provides acoustic insulation, ensuring the flush is as quiet as possible without compromising on power.

Precision Plumbing & Effortless Maintenance

The Duplo One features a versatile 110mm drainage diameter and a dynamic pressure range (0.1 – 10 bar), ensuring compatibility with almost any domestic water system. Maintenance is handled entirely through the flush plate aperture; the internal components are designed for easy removal and servicing without the need to disturb your tiling or wall finish.

Eco Efficient & Fully Customizable

The Duplo One features a customisable dual flush mechanism allowing for potentially significant water savings. To complete your vision, the system is compatible with a wide array of Roca’s signature flush plates, available in various finishes and designs to match your specific interior style.

Key Features

• Self-Supporting Steel Frame: Heavy duty, full height structure (1120mm) designed for secure wall hung toilet installations.
• Extra slim Depth: A compact 80mm cistern depth allows for installation in narrow stud walls or service voids, maximizing your floor space.
• Acoustic & Thermal Insulation: Insulated cistern prevents condensation and ensures a whisper quiet flush (factory set to 6/3 litres, but adjustable to 4.5/3 or 4/2 litres).
• Dual Flush Technology: Adjustable flush volumes allow for high water efficiency and lower utility bills.
• Front Access Maintenance: All internal components are accessible through the flush plate for easy, tool-free servicing.
• Universal Compatibility: Designed to work seamlessly with Roca’s extensive range of wall-hung toilets and designer flush plates (available separately).

About Roca: Redefining the Bathroom Landscape

With over a century of heritage rooted in Barcelona, Roca is a global leader in bathroom design and innovation. Roca combines world class design with sustainable technology to create products that enhance everyday life. From their Stonex® trays to these precision engineered concealed systems, Roca continues to set the benchmark for quality, durability, and Mediterranean inspired style in over 170 countries.