Geberit
Geberit Sigma 12cm Concealed Dual Flush Cistern
- Free deliveryon orders over £500
- Price matchguarantee
- Expert adviceavailable
Product description
The Geberit Sigma 12cm Concealed Dual Flush Cistern — often still called the UP320 — is the cistern on its own, without a frame: the choice for back-to-wall floor-standing pans, or where the cistern is being built into a masonry wall or bespoke boxing.
At Home of Clay we supply the Geberit range alongside the Crosswater, Coalbrook and BC Designs bathrooms in our Newcastle-under-Lyme showroom in Staffordshire. Talk a specification through with us before you order and we will check that the frame, cistern, flush plate and pan all work together.
What’s included
- Sigma 12cm cistern
- Rp ½ supply with integrated angle stop valve and handwheel
- Service opening protection box
- 90° flush bend and ø45mm extension
- Protection plug
- 2 slotted flat irons and 2 fixing brackets
- Fastening material
Key features
- Huge plate choice — Works with the whole Sigma plate family — Sigma01, 20, 21, 30, 50, 70 and 80.
- Adjustable flush — Factory 5.8 / 3 litres; small flush adjustable 2–4 litres.
- Tool-free servicing — Everything reached through the plate opening.
- Cut-to-length service box — Suits different wall finishes.
- 25-year spare parts — Function-maintaining parts guaranteed.
Technical information
- Brand
- Geberit
- Range
- Sigma
- Product code
- 109.309.00.5
- Product type
- Concealed cistern
- Depth
- 12cm
- Flush
- Factory set 5.8 / 3 litres
- Flow pressure
- 0.1–10 bar
- Standards
- EN 997, EN 14055 Class II
- Flush plate
- Sold separately — any Sigma plate
- Product code
- 109.309.00.5
For floor-standing back-to-wall WCs, drywall, prewall and room-height walls. If you are fitting a wall-hung pan you need a frame — see the Duofix Sigma frames.
Flow pressure 0.1–10 bar. Tested to EN 997 and EN 14055 Class II.