Wall-mounted toilet installation unit GEBERIT DUOFIX

with toilet tankfor wall-mounted washbasinsfor wall-hung bidets

Overview
Geberit Duofix is a universal, self-supporting prewall installation element for drywall construction designed for wall-hung WCs, washbasins, showers and other sanitary appliances. It is suitable for partition-wall installations, in-wall stud-wall installations and both part-height and full-height prewall installations in new builds and renovations. Single-person installation is possible.

Key information
Geberit Duofix enables fast, clean and flexible prewall installation in drywall construction. The current generation offers improved flexibility, simplified installation, optimised hydraulics and reduced CO₂ through material savings and green electricity in manufacture.

Applications

• Partition-wall installations
• In-wall installations in lightweight stud walls
• Part-height and room-height prewall installations
• New build and renovation projects

Advantages of the new Geberit Duofix

• Greater flexibility for demanding installation situations
• Faster and easier installation with factory-prepared connections
• Optimised hydraulics via latest-generation fill and flush valves
• CO₂ reduction through material savings and use of green electricity

Easy handling — installation-friendly features

• Click-in feet (Duofix system)
• Turn-to-fix wall anchors (Duofix system)
• Panelling supports between elements
• Adjustable pipe bracket
• Screws with hexalobular socket (TX)
• Additional factory markings for quicker assembly

Prewall elements — extra flexibility

• Pull-out side fastening plate
• Alternative wall anchor positions
• Suitable for floor constructions up to 25 cm high
• Foot plate with hollow space
• Suitable for WCs with a projection of up to 70 cm

Optimised hydraulics
The concealed cistern hydraulics are optimised with the Type 212 flush valve. Type 212 is a dual-volume flush valve with an adjustable full flush volume between 4.0 and 7.5 litres and includes a throttle to adapt flow rate to different WC ceramics to prevent oversplashing and ensure reliable operation.

Applications at a glance — sanitary appliances supported

• Wall-hung WCs
• Washbasins
• Showers (including wall drain solutions)
• Urinals
• Bidets

Frequently asked / practical notes
Geberit Duofix elements are statically self-supporting and can be used as individual installation elements or integrated into the Duofix system wall. They are intended for use by sanitary professionals and cover standard and special construction situations including barrier-free solutions.

Technical specifications

• Product family / model name: Geberit Duofix
• Manufacturer / Brand: Geberit
• Installation types: partition wall, in-wall stud walls, part-height and room-height prewall
• Suitable for new build and renovation
• Installation: single-person installation possible
• Concealed cistern flush valve: Type 212 (dual-volume), adjustable full flush 4.0–7.5 L
• Hydraulic feature: throttle to adjust flow-rate speed for different WC ceramics
• Floor construction compatibility: suitable for floor constructions up to 25 cm
• WC projection compatibility: suitable for WCs with projection up to 70 cm
• Mounting features: click-in feet, turn-to-fix wall anchors, pull-out side fastening plate, alternative wall anchor positions
• Installation aids: panelling supports between elements, adjustable pipe bracket, screws with hexalobular socket (TX), additional factory markings
• Environmental: CO₂ reduction measures via material savings and use of green electricity in manufacture