Duravit
Duofix Sigma 1120mm WC Frame & Concealed Cistern
Currently Unavailable
This item is currently out of stock. Please contact us for the latest lead time.
Our team can confirm expected availability.
Regular price
£289.95
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We help design your perfect bathroom using 2D and 3D visuals, so you're confident before you buy. Our team is here at every step — from selecting the right fittings to aftercare support once your bathroom is complete.
Find out moreWarranty
Every product comes with the full manufacturer's warranty. We also offer the Soaque Warranty — a service guarantee that goes above and beyond the legal minimum, ensuring you receive aftercare you can trust.
Delivery
We work with trusted couriers and consolidate orders where possible. Some products are delivered kerbside on pallets — onward handling into the property is the customer's responsibility. Items may occasionally arrive separately.
Returns
You have 14 days from receipt to request a return for a full refund. Due to the specialist nature of our products, returns can be costly — we encourage you to speak with our team before ordering. Return delivery costs are the customer's responsibility.
Currently Unavailable
This item is currently out of stock. Please contact us for the latest lead time.
Our team can confirm expected availability.
Regular price
£289.95
Essential products
VENTI20 Flush Plate for Geberit Sigma 8 & 12
From £755.95
ANELLO Flush Plate for Geberit Sigma 8 & 12
From £694.95
Flush Plate for Geberit Sigma 8 & 12
From £631.95
INVERSO RIGATO Flush Plate for Geberit Sigma 8 & 12
From £1,328.95
We help design your perfect bathroom using 2D and 3D visuals, so you're confident before you buy. Our team is here at every step — from selecting the right fittings to aftercare support once your bathroom is complete.
Find out moreWarranty
Every product comes with the full manufacturer's warranty. We also offer the Soaque Warranty — a service guarantee that goes above and beyond the legal minimum, ensuring you receive aftercare you can trust.
Delivery
We work with trusted couriers and consolidate orders where possible. Some products are delivered kerbside on pallets — onward handling into the property is the customer's responsibility. Items may occasionally arrive separately.
Returns
You have 14 days from receipt to request a return for a full refund. Due to the specialist nature of our products, returns can be costly — we encourage you to speak with our team before ordering. Return delivery costs are the customer's responsibility.
About this product
Duofix 1120mm Wall Hung WC Frame with Sigma 12cm Cistern
From Geberit's Sigma collection, this next-generation Sigma 1120mm wall-hung WC frame and 12cm cistern combines 60 years of engineering expertise with measurable improvements in performance and installation speed. Compatible with over 130 Geberit Sigma flush plate finishes, it offers complete flexibility on the finished look of the bathroom.
Key Features
- Frame height 1120mm, cistern depth 120mm — suitable for standard full-height pre-wall installations
- Next-generation Sigma cistern — over 30% quieter than the previous model, optimised hydraulics (2–4L small / 5.8L large)
- 40% faster installation than its predecessor, with pull-out side fastening plate, hexalobular screws, and laser markings
- Supports wall-hung WC pans up to 700mm projection — strength-tested to 400kg when combined with Geberit wall-hung pans
- WRAS approved — water supply components certified for UK use
- Compatible with Geberit AquaClean shower toilets, DuoFresh, and 130+ Sigma flush plate finishes
- 50-year spare parts guarantee
- Flush plate sold separately, only to be paired with Geberit flush plate, or Gessi Flush Plate
Why Choose Geberit
With over 150 years of engineering expertise and more than 70 million concealed cisterns installed worldwide, Geberit is the trusted name behind some of Europe's most reliable bathroom systems. Every cistern is leak-tested before leaving the factory, and the Sigma range is designed to deliver consistent, quiet performance day after day — backed by a 50-year spare parts commitment that reflects confidence in long-term quality.
Care & Installation
Wipe with a soft cloth; avoid abrasive cleaners. Follow the enclosed installation instructions for best results.
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