Geberit Duofix 1120mm WC Frame with Sigma 12cm Concealed Cistern
 
The Geberit Duofix WC Installation Frame provides a robust and versatile solution for installing wall-hung toilets. Manufactured from corrosion-protected powder-coated steel, the self-supporting frame is supplied with a Geberit Sigma 12cm concealed cistern and is suitable for wall-hung WCs with a projection of up to 700mm.
 
Designed for installation within metal or timber stud walls, Geberit Duofix system walls and part- or room-height prewalls, the frame features height-adjustable feet with rotating foot plates for flexible positioning. It can accommodate floor constructions from 0–250mm, while the WC connection bend can be installed at different depths across a 45mm adjustment range without tools.
 
The fully insulated Sigma concealed cistern helps protect against condensation and provides front actuation for single, dual or stop-and-go flushing. Factory set at 5.8 / 3 litres, the small flush can be adjusted between 2 and 4 litres to suit installation requirements.
 
Designed with future functionality in mind, the frame includes conduit provision for Geberit AquaClean shower toilets, electrical connection and the Power & Connect Box. Supplied with the required WC connections, wall anchors, water connection and installation components, the Duofix provides a comprehensive concealed WC installation solution.
 
Key Features
Geberit Duofix wall-hung WC installation frame
Product code 111.383.00.6
Geberit Sigma 12cm concealed cistern included
Self-supporting powder-coated steel frame
Corrosion-protected construction
1120mm installation height
500mm frame width
Height-adjustable feet
Suitable for WC projections up to 700mm
Suitable for metal and timber stud walls
Suitable for Geberit Duofix system walls
Suitable for part- and room-height prewalls
Accommodates floor construction from 0–250mm
Front flush actuation
Suitable for single, dual and stop-and-go flushing
Factory flush setting of 5.8 / 3 litres
Small flush adjustable from 2–4 litres
Fully insulated against condensation
Tool-free adjustable connection bend
Rear or top-centre water connection
AquaClean conduit provision
Components in contact with drinking water are lead-free
Complies with EN 14055 Class II
Supplied With
Geberit Sigma 12cm concealed cistern
R 1/2" water supply connection
Integrated angle stop valve and hand wheel
Cut-to-length service opening protection box
Two wall anchors
WC connection set
90mm connection bend
90 / 110mm adaptor socket
Fastening and protection materials
Conduit for Geberit AquaClean feed pipe and connection cable
Electrical connection fastening