Geberit
Geberit Duofix 1140mm Slimline WC Frame with Sigma 8cm Cistern
- Free deliveryon orders over £500
- Price matchguarantee
- Expert adviceavailable
Product description
The Geberit Duofix 1140mm Slimline WC Frame with Sigma 8cm Cistern is built for the room where every centimetre counts. The 8cm-deep cistern lets the boxing sit noticeably closer to the wall than a standard 12cm frame, freeing up floor space in cloakrooms, en-suites and narrow bathrooms. Geberit has spent over 60 years refining concealed installation, and Duofix frames have been installed millions of times — it is the frame most UK installers will recommend without being asked.
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
- Duofix frame with Sigma 8cm cistern
- Protection cover box for service opening
- Connection bend and fixings
Key features
- 8cm-deep Sigma cistern — Reduces the depth of the boxing.
- Self-supporting frame — Powder-coated, with zinc-plated height-adjustable legs.
- Projection up to 70cm — Accommodates longer wall-hung pans.
- Flexible flushing — Single, dual or stop-and-go flush.
- AquaClean ready — Conduit for an AquaClean shower toilet feed.
- Tool-free servicing — Cistern internals reached through the plate opening.
Technical information
- Brand
- Geberit
- Range
- Duofix / Sigma
- Product code
- 111.799.00.3
- Product type
- Wall-hung WC frame with concealed cistern
- Frame height
- 1140mm
- Cistern depth
- 8cm
- Flush
- Factory set 5.8 / 3 litres
- Flow pressure
- 0.1–10 bar
- Floor construction
- 0–20cm
- WC projection
- Up to 70cm
- Cistern standard
- EN 14055, Class II
- Flush plate
- Sold separately — any Geberit Sigma plate
- Product code
- 111.799.00.3
Choose this frame when wall depth is the constraint — for example where boxing would otherwise eat into a doorway or a narrow cloakroom.
The flush plate is sold separately; any Geberit Sigma plate fits, including surface-flush installations.
Water supply connects at the top, offset to the left. Floor constructions 0–20cm.