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Geberit Sigma Concealed Dual Flush Cistern - 109.309.00.5

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Geberit Sigma Concealed Dual Flush Cistern - 109.309.00.5

Geberit the leading brand name in manufacturing superior and eye-catching sanitarywares and bathroom accessories now offers the highly functional and long-lasting Geberit Sigma Concealed Cistern. This concealed dual flush cistern with its white finishing will become a remarkable addition to your bathroom when you want to save the water consumption at maximum level. The well-developed dual flush technology together with the exceptional longevity, used in crafting this dual flush cistern make it the best value for your money. This geberit cistern has maximum 570mm width and comes with flush pipe of 45mm including a fastening for flush bend, a protection plug for flush pipe, slotted flat irons, fastening brackets pre-mounted and fastening material. 

Application Purpose

  • For concealed installation
  • For back to wall floor-standing WCs


  • Concealed cistern fully insulated against condensation
  • Front actuation only
  • Protection cover for service opening can be mounted without tools and cut to length
  • Dual flush with Sigma80 touchless, Sigma60, Sigma 50, Sigma 20, Sigma 10 touchless, Sigma 01 or Bolero flush plates
  • Dual flush with pneumatic buttons
  • Single flush with Sigma 10 or Tango flush plates
  • Single flush with touchless flush or pneumatic buttons
  • Water supply connection at centre back or at the top
  • Flush bend has maximum 8 cm adjustment. Flush can be cut down by maximum of 8 cm
  • Installation height 1080 mm (can be cut down, depending on the WC pan performance)
  • Minimum install height 950 mm
  • Fastening bracket adjustable in depth
  • Cistern can be reversed to give access from behind in a duct situation when flushed with pneumatic buttons or touchless flush
  • Flush valve features 6 l and 4.5 l flush settings to enable either a 6 l and 3 l flush or a 4.5 l and 3 l flush. Note: 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

Technical data

  • Flow pressure range : 0.1-10 bar
  • Operating temperature water max. : 25 °C
  • Flush volume factory setting : 5.8 and 3 l
  • Flush volume small range : 2.6-4 l

Scope of delivery

  • Water supply connection R 1/2" male BSP parallel thread with integrated angle stop valve
  • Protection housing for service opening
  • >Flush pipe ø 45 mm
  • Fastening for flush bend
  • Protection plug for flush pipe
  • 2 slotted flat irons
  • 2 fastening brackets, pre-mounted
  • Fastening material


    • Flush plate

    Please Note

    • Lead time on products may vary, we aim to deliver within the timescale. If however the item is out of stock, you will be notified within 2 working days.


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How Much Will My Delivery Cost?

Delivery costs vary based on item size and delivery address. Even if your order contain various item sizes, only one delivery charge will be applied. Please NOTE this is a guide ONLY.  For the exact delivery cost please click on the delivery calculator which is shown on the front page of each product.

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We hope that your purchase is exactly what you expected, however we understand that occasionally an issue may occur with your chosen item(s). If you change your mind for whatever reason and simply do not want any of the products purchased, as long as it is within 14 days of receipt of goods you may return the goods to us as we offer a hassle-free 14 day returns policy:

  • You can return your item if it is unsuitable, provided it’s unopened and in its original packaging
  • However you (the customer) shall be responsible for the return of the product and all cost associated with this.
  • You the customer will be responsible for our postage costs to you which will be deducted from the amount we refund to you.

Contact our Customer Care Team by Email returns@banyo.co.uk detailing the damage with images if appropriate to arrange a collection and a credit or refund for the product will be issued within 14 days of receipt by us of the product.

Products we are unable to cancel, refund or exchange

We can't offer refunds or exchanges, unless faulty or not as described, on the following items:

  • Products which have been personalised for you,
  • Where a product has been specially ordered for you, unless faulty, we're unable to refund

or offer an exchange.

Return of Faulty or Damaged Goods Received

We ask that customers make a full inspection of all products received on the day of delivery. We must be notified of any items that arrive faulty or damaged within 48hrs of receipt. For this we advise that you send an email to returns@banyo.co.uk detailing the damage with images if appropriate. This email will be acknowledged by us and we will advise the next steps, and contact you and either arrange collection, ask for goods to be returned back to us or ask you to dispose of the goods. Please note, never dispose of goods without our notification. Should we request that you send the goods back to us, we ask that you include a receipt for any postage costs that you may incur so that we may refund the full cost of postage.

Please note: All goods reported as faulty will be tested by manufacturers, if it is determined the goods are not faulty or if the faults are deemed to be caused by damage or abuse this will void any warranty, goods will be returned to you and no refund or replacement issued.

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