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ROCA Duplo One Tank Under Window Concealed CisternDesign for Challenging Spaces The Roca Duplo One Under Window Concealed Cistern is a specialist solution meticulously engineered for back to wall (BTW) toilets in areas where height is at a premium. Standing at a compact 600mm tall, this unit is the perfect problem solver for installations beneath windows. By hiding the plumbing and water storage behind your wall or cabinetry, it allows for a floor standing aesthetic that maximizes the sense of space
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Design for Challenging Spaces

The Roca Duplo One Under Window Concealed Cistern is a specialist solution meticulously engineered for back-to-wall (BTW) toilets in areas where height is at a premium. Standing at a compact 600mm tall, this unit is the perfect problem solver for installations beneath windows. By hiding the plumbing and water storage behind your wall or cabinetry, it allows for a floor standing aesthetic that maximizes the sense of space in even the most compact en-suites.

Dual-Option Flushing

The defining feature of this under window system is its incredible installation flexibility. Because low level spaces often present unique access challenges, Roca has designed this cistern to accommodate either front or top (horizontal) flush plate mounting. This means you can choose to have your flush buttons on the face of the wall or neatly integrated into a top ledge or shelf. Despite its reduced height, it maintains a slim 145mm depth.

Acoustic Excellence and Built-in Protection

This cistern is fully encapsulated in a high density insulation jacket. This layer acts as a sound dampening shield, ensuring the tank refills with quiet discretion. Beyond acoustics, the insulation serves a vital structural purpose: it prevents condensation from forming on the exterior of the cistern, protecting your cabinetry and internal wall structures from moisture and rot over time.

Sustainability Meets Easy Maintenance

The Duplo One features a dual flush mechanism, allowing the user to choose between a full or partial flush, significantly reducing water consumption without sacrificing flushing power. Maintenance is equally effortless as every internal component is fully accessible through the flush plate aperture, allowing for simple servicing without ever having to disturb your tiles or furniture.

Key Features

  • Specialist Low Level Profile: An 600mm height makes it the definitive choice for under window or restricted height installations.
  • Dual Flush Plate Mounting: Unique flexibility allows the flush plate to be installed on the front or the top of the unit to suit your layout.
  • Optimized for Back-to-Wall Pans: Designed specifically for floor standing BTW toilets to create a seamless, minimalist finish.
  • Thermal & Acoustic Insulation: Insulated jacket eliminates condensation and provides a quiet, premium flush.
  • Dual Flush: High performance water management that helps lower utility bills and environmental impact.
  • Universal Professional Specs: Features a 1/2" water inlet and operates across a wide dynamic pressure range (0.1 – 10 bar).
  • Simplified Servicing: All internal valves are accessible through the flush plate for hassle-free maintenance.

About Roca: A Century of Bathroom Innovation

Founded in Barcelona in 1917, Roca has evolved from a family run workshop into one of the world’s leading name in bathroom design. With a presence in over 170 markets, Roca is driven by a philosophy that blends Mediterranean craftsmanship with cutting-edge sustainable technology. Every Roca product is designed to enhance the beauty, comfort, and efficiency of the modern home.

Flush Plates available separately.

ROCA Duplo One Tank Under Window Concealed Cistern

Item no : 89947990775
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US$ 144.25
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Min. order: 1piece

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Ships within 48 hours · Estimated delivery Jun 20 - Jun 25

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US$ 144.25

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