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Geberit Omega 120mm Dual Flush Concealed Cistern White For 820mm Height


RRP: £340.93


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Shipping: £7.95

Delivery in 2 Working Days Approx.
Key Features
  • Cistern fulfils standard requirements in accordance with EN 14055, Class II
  • Immediate post flush possible with factory setting
  • Tool-free installation and maintenance work on the concealed cistern
  • Integrated with an angle stop valve and hand wheel
  • Features protection cover box (can be cut to length) for service opening, protects against moisture and dirt
SKU Code: QS-V93513

MFC Code:

Geberit Omega Details

Ideal for floor standing WCs, the Geberit Omega Dual Flush Concealed Cistern with Front Actuation is an excellent way to powerfully and safely complete your toilet set-up. It has an adjustable depth to make it easier for you to install it in the most appropriate place. The product offers a tool-free installation that makes application a breeze and is fully insulated against condensation.

  • The manufacturing code of this product is -
  • Size [mm]: 416mm x 395mm [Width x Height].
  • Size [cm]: 41.6cm x 39.5cm [Width x Height].
  • Installation height required: 820mm (82cm).
  • Features Adjustable depth.
  • Comes with top or front actuation.
  • Fully insulated against condensation.
  • Welded flush bend included.
  • Water supply connection on the left or rear left.
  • Flow pressure: 0.1 – 10 bar.
  • Maximum operating temperature, water: 25° C.
  • Flush volume, factory setting: 5.8 and 3 L.
  • Flush volume large, adjustment range: 4.5 / 6 / 7.5 L.
  • Flush volume small, adjustment range: 3 – 4 L.
  • Calculated flow rate: 0.11 l/s.
  • Minimum flow pressure for calculated flow rate: 0.5 bar.
  • Download the Installation Instruction PDF File from the Additional Info Section.
  • Application purpose.
  • For drywall construction.
  • For installation in part-height pre-wall installations.
  • For floor-standing WCs.
  • Scope of delivery.
  • Water supply connection R 1/2inch.
  • Compatible with MeplaFix.
  • Protection box for service opening.
  • Flush bend extension: Ø45mm
  • Fastening for flush bend.
  • Protection plug.
  • Cup for flush volume reduction: 4.0/2.6 l.
  • 2 Fixing brackets.
  • Fastening material.

Note: Flush valve features settings to enable either a 6 l and 3 l flush or a 4.5 l and 3 l flush. Cistern must be used with pans designed for low volume flush. The cistern can be operated with used water rainwater provided it is passed through a filter system first.

Info / Size (mm)

  • Cistern
  • Width: 416 mm
  • Depth: 120 mm
  • Height: 395 mm

Technical Specifications

Please note all the measurements are in 'mm'
  • ⤷ Country of Origin
  • : Germany
  • ⤷ Cistern Type
  • : Concealed
  • ⤷ Flush Type
  • : Dual
  • ⤷ Full Flush Volume in litres
  • : 5.8
  • ⤷ Half Flush Volume in litres
  • : 3
  • ⤷ Flush Mechanism
  • : Dual
  • ⤷ Width
  • : 416
  • ⤷ Depth
  • : 120
  • ⤷ Height
  • : 395
  • ⤷ Fixings included
  • : Yes
  • ⤷ Compliance/Approvals/Standard
  • : EN 14055, Class II

Additional Info & Downloads

Total: £175.69 4 Working Days Approx QS Supplies

1 Features Included In This Product Explained



Drywall, or wallboard, also called plasterboard or gypsum board, is a common building material used in interiors for constructing walls and ceilings. Drywall is gypsum plaster in the middle with layers of paper or fiberglass mats on either side. Drywalls do not need mortar or plaster. The gypsum core is rigid, and the other surface is smooth.

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Questions & Answers

Submit Your Questions 3 Questions Answered

Have a question about this item? Ask our technical team. We aim to reply within 72 hours.

Stephen Asked :

Is the height of 820mm from the floor? Does the Geberit Omega30 212 x 142mm Dual Flush Plate fit the QS-V63301 Geberit Kappa Dual Flush 15cm Concealed Cistern White?

Answered By QS Team Answered by the QS Technical Team

Yes, the installation height is 82cm from the floor, and the Omega 30 flush plate will fit with this concealed cistern.

Was this answer helpful?
Andreij Asked :

What is the difference between the Geberit Kappa and Geberit Omega concealed cisterns?

Answered By QS Team Answered by the QS Technical Team

A key distinction between the Kappa and Omega cisterns lies in their flush plate options. The Kappa range offers a broader selection of designs and finishes, catering to diverse aesthetic preferences. Additionally, the Omega cistern features top access, allowing for the convenient placement of a flush plate on top if required, a feature not available in the Kappa series.

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Malcolm Asked :

Will this fit in a cavity that is +/- 155 mm deep?

Answered By QS Team Answered by the QS Technical Team

The total cavity space can vary depending on the method of fixing and draining arrangement, please consult the installer. Omega 12cm cistern Duofix frame H 82cm
Drain below the floor with Top Access – approx. 170 mm
Drain Below Floor Front Access – approx. 160 mm
Drain running Left or Right – approx. 200 mm
Drain running straight back Front Access – approx. 140 mm
Drain running straight back Top Access - approx. 170 mm

The minimum depths based on frame and supplied drainage connector only. Extra space might be required depending on the bracket type used to take the drainage connection to the stack.

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Accepted Answer 2 Thumbs Down 1
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