The cistern
The new Prevista cistern forms the basis of our new pre-wall applications – whether you are planning a bathroom based on dry or wet construction techniques. It is the same in all Prevista WC elements. The filling and drain valves, and its actuation mechanism, are identical in every application. The cistern is available in two variants: 3H and 3L.

-
Water connection
Water connection can be from left or from the right as required.
-
Actuation
Actuation could be from the top or front.
-
Drain valve
Adjustable drain valve 2-4 Litres for small flush and 3.5 - 7.5 Litres for big flush.
-
Height adjustment
Height could be adjusted by cutting Flush pipe.
![]() |
Leave more room for beautyMore design space to reinvent the bathroom |
![]() |
Viega Engineering for Indian requirementOffers design freedom |
![]() |
Adaptable for low height application as well |
![]() |
QuickReady for next flush |
![]() |
Viega is easy to install and easy to maintain |
![]() |
Eco-friendlyAble to adjust half flush as well as full flush |
![]() |
Flexible by designfront of top actuation |
![]() |
Quiet OperationAnti scaling valve assists the smooth and silent operation |
![]() |
Heavy DutyCan take load up to 400kg with frame |
![]() |
10 years warrantyFor cisterns and Flush plates according to Viega warranty policy |
- All manually installable components are coloured yellow – whether the corner valve shut-off, the clips fastening the drain elbow, or the flush volume slide adjusters of the drain valve.
- The new drain valve: The partial and full flush volumes are adjusted by two yellow sliders. The flush flow is adjusted by a flushing throttle.
- The water connection with internal sealing is installed without the use of tools, and offers options including the facility to re-align the connection post-installation or to install a prefabricated piping system.
The applications
We have greatly simplified our portfolio. There are two pre-wall applications. For dry constructions we offer Prevista Dry for in-wall and support profile installation. For wet constructions we offer Prevista Pure. All systems feature the same cistern. This means you can assemble and install your pre-wall system in super-quick time.
Wet construction
State-of-the-art pre-wall technology combined with tried and proven methods: With Prevista Smart and the new cistern, custom, high-grade, durable wet construction installations can be created.
Prevista Smart
"Smart" is a byword for wet construction techniques on the international market. Accordingly, our Prevista Smart pre-wall blocks are tailored to wet construction requirements. They are highly flexible for use in individual installation projects. Blocks are available for WCs, urinals, washbasins and bidets, each in two height variants: 820 mm and 1070 mm.
Fully pre-assembled
To make it easier for you, the interior fittings with the Prevista cistern come fully pre-assembled, and permit operation from the front. The 820 mm variant can also be easily operated from above. The flexible height adjustment additionally enhances variability in installation.
- The installed Prevista Smart WC pre-wall block with the pre-assembled Prevista cistern.
Dry construction
Our new Prevista Dry pre-wall application for in-wall and support profile installation is a great aid to dry construction projects thanks to its wide range of innovative functions. It is robust in finish, so assuring maximum reliability.
Prevista Dry
Prevista Dry Plus also allows more unusual wishes to be met. The rail system provides for a high degree of design freedom while also being quick to install.
Quick and easy installation
After the preparatory work, such as drilling the holes, Prevista Dry can be installed using just three tools: a folding rule, a spirit level and a size 13 spanner. As in the case of the cistern, all components that can be installed without the use of tools are coloured yellow. And Prevista Dry is extremely easy to mount on a wall: Solutions such as the wall bracket additionally save time thanks to their flexibility.
Intelligent quick-release clamps
Height-adjustment of water connections and urinal and washbasin drains used to be very time-consuming. The new quick-release clamps have revolutionised the procedure, and offer high levels of stability matching any screw-fit connection.
Functions for more customer comfort
A key concern in future will be age-appropriate bathroom design. Viega Prevista has established the preconditions to meet those needs by making its installations height-adjustable as standard, as well as offering the facility to install shower WCs of any widely-used make.
- Quick to install and featuring lots of new functions: the Prevista Dry WC element for dry construction with the universal cistern.
- All manually installable components are coloured yellow – the drain elbow clips, the fine adjuster of the wall mounting, the fixing of the flush plate frame and the removable site protection.
- With the optional wall bracket fixed on the element, the pre-wall element can be mounted on the wall without the use of tools and its height flexibly adjusted.
- The pre-wall element is infinitely adjustable in height as standard, and can be adjusted prior to final assembly to a height of up to 39 cm for maximum user comfort.
- The individually height-adjustable Prevista WC and washbasin elements can be adjusted in height by 8 or 20 cm respectively at the press of a button.
- Infinitely height-adjustable washbasin element with support bracket for custom partial-height pre-wall constructions from 820 mm to 1300 mm.
- The 820 mm high WC element enables convenient installation of a WC at low height, such as below sloping roofs or windows.
- Prevista offers three different urinal elements with differing features, such as a telescopic water connection or a concealed urinal control for vandal-proof installations.