Geberit Sigma Concealed Cistern - 12cm

Item Code: 109.309.00.5
RRP: £171.92 You Save £41.92 £130.00

Estimated delivery in 2-4 working days

  • For use with back to wall toilets
  • Dual or single flush compatible
  • Front mounted flush button/plate - sold separately
  • Easy to install and maintain
  • 25 year guarantee
  • Delivery

    Estimated delivery in 2-4 working days

    Standard - £4.99*

    Next Day - £7.99*

    Free for orders over £500**

    More Info

    Small Delivery - £4.99*

    Free for orders over £500**

    More Info

Geberit Sigma Concealed Cistern - 12cm

Designed by the experts in durable, high quality and innovative bathroom solutions, the Sigma Concealed Cistern by Geberit is perfect to use with your back to wall toilet. Easy and quick to install, this concealed cistern is also remarkably easy to maintain. Built to last, this cistern also comes with a 25 year guarantee for added peace of mind.


• For use with back to wall toilets
• Your chosen flush plate/button can be mounted on the front only
• Fully insulated against condensation
• Compatible with the Sigma range of flush plates (excluding Sigma40)
• Water supply can be connected at the centre back or at the top
• Flush bend has a maximum adjustment of 8cm
• Installation height: between 950mm and 1080mm
• Fastening bracket is adjustable in depth
• Dual or single flush compatible
• Set at a 6/3L flush or a 4.5/3L flush
• Flush plate sold separately
• 25 year manufacturer guarantee

Height (mm) 635
Width (mm) 570
Depth (mm) 160
Brand Geberit
Brand Range Geberit Sigma
Guarantee 25 years
Material Plastic
Product Type Concealed Cisterns

Delivery & Returns:

  • UK mainland orders big or small ship for free if you spend £500 or more. If you're spending less, our standard pallet charge for large orders (baths, sanitaryware, shower enclosures etc.) is £29.99 for most areas. For small orders our standard charge is £4.99 for most areas. 

  • Each item has an estimated lead time displayed in working days (Mon-Fri). Please note that when ordering multiple items, the longest estimated lead time shown would apply. If you're particularly urgent, you might like to split your order or give us a call to see what we can do.

  • Next day deliveries - for large items that are in stock, order before 1pm and choose Next Day Pallet Delivery to receive the next working day (Monday - Friday). For small items that are in stock, order by 4pm and select Next Day (Monday - Friday). Delivery estimates are shown in the basket and checkout.

  • Important: Items are subject to availability and delay in delivery of goods is sometimes out of our control. We pride ourselves in having the UK's largest online offering of bathroom products however some of our products are not kept in stock and need to be specially ordered for you. In the event that a product is out of stock with our supplier, we will notify you by email or telephone as soon as possible and give you the option to wait, switch to an alternative product, or cancel your order and receive a refund. 

For full information on how and when we deliver, see here.

For our returns policy click here.

Delivery Over The Festive Period:

Unfortunately our brand partners are closed during the festive period. This means delivery might take a little longer than estimated on our website. Our warehouse will be open on 27th, 28th and 31st December so any products that are showing 'In Stock' will be available for next day or standard delivery. 

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