Description
This Slimline Geberit Sigma Concealed Cistern 8cmD with a construction height of 114cm is perfect for when space is at a premium, suited for quick and easy installation in part-height or room-height pre-wall or partition walls and for use with wall hung toilet pans with a projection up to 700mm.
Backed by decades of innovation and over 70 million installations worldwide, Geberit Duofix Sigma systems are trusted for their durability, quiet operation, and advanced compatibility with modern bathroom technology.
Key Features:
• Slim 8cm depth – Perfect for space-saving applications
• Fully insulated Sigma concealed cistern – Prevents condensation buildup
• Tool-free maintenance – Easy servicing without specialist tools
• Load bearing up to 400kg (63 stone) when combined with Geberit wall-hung toilet
• Future-ready – Integrated conduit for electrical connections (flush plates, AquaClean shower toilets, DuoFresh odour extraction, etc.)
• WRAS Approved – Water supply components certified for UK use
• Ultra-quiet – Acoustic-optimised design with Duofix frame
• Universal compatibility – Works with over 100 Geberit Sigma flush plates and push buttons
Technical Specifications:
• Construction height: 1140mm
• Installation depth: 80mm
• Operating pressure: 0.1–10 bar
• Flush volume (factory setting): 5.8 / 3 litres
• Adjustable flush volume: Large: 4.5 / 6 / 7.5 L | Small: 2–4 L
• Frame material: Powder-coated steel, corrosion resistant
• Connection type: Water supply connection R 1/2", top left
What’s Included:
• Water supply connection R 1/2" with integrated angle stop valve
• Protection box for service opening (cut-to-length)
• 2 x wall anchors and 2 x fixing brackets
• WC connection set (ø 90mm)
• 90° PE-HD connection bend (ø 90mm)
• Adaptor socket PE-HD (ø 90/110mm)
• 2 x M12 threaded rods
• Fastening and protection materials
Key Features
- Slim 8cm depth
- Use with wall-hung WC's with projections up to 700mmD
- Easy installation
- Load bearing up to 400kg
- Integrated conduit for electrical connections