The Wisa Duplo 199 Slim Concealed In-Wall WC Cistern is a premium concealed cistern system designed for projects where installation depth is limited without compromising performance. With a slim 90mm minimum installation depth, it is ideally suited for installation within standard 4" timber wall framing, making it an excellent solution for residential, commercial, healthcare and education applications where space is at a premium.
Constructed around a heavy-duty powder-coated steel frame, the Wisa Duplo 199 Slim provides exceptional strength and durability, supporting wall-hung WCs up to 400kg. The factory-assembled concealed cistern features a dual flush mechanism with adjustable flush volumes, helping to reduce water consumption while maintaining reliable flushing performance.
Designed for fast installation and easy servicing, the frame includes pre-assembled wall brackets, adjustable feet and a depth-adjustable drain connection to suit a wide range of installation requirements. The fully insulated polyethylene cistern prevents condensation, while the quiet hydraulic fill valve ensures low-noise operation, making it ideal for healthcare, education, hospitality and premium residential developments.
Suitable for timber stud, steel stud and masonry wall construction, the Wisa Duplo 199 Slim is compatible with a range of contemporary flush plates, allowing designers to achieve a clean, minimalist bathroom aesthetic while maintaining easy access for future servicing through the flush plate opening.
Features
- Designed to fit within a standard 90mm (4") wall cavity
- Slim 90mm minimum installation depth, suitable for standard 4" wall framing.
- Heavy-duty powder-coated steel frame.
- Supports wall-hung WCs up to 400kg.
- Concealed dual flush cistern with adjustable flush volumes.
- Adjustable large flush (4–7L) and small flush (2–3L).
- Front access for installation and servicing.
- Fully insulated cistern to prevent condensation.
- Quiet hydraulic fill valve (ISO 3822 Noise Class 1).
- Adjustable mounting feet and wall brackets for flexible installation.
- Adjustable drain elbow for simplified connection.
- Suitable for timber stud, steel stud and masonry wall construction.
- Supplied complete with installation brackets, fixing kit and drainage fittings.
- Compatible with MAGNUS, METIS, VENTUS, VELA and PLUTO flush plates (sold separately).
