Duofix In-wall System with Sigma Concealed Tank For 2x6 Construction

Features

When you pair a Geberit installation system with a compatible wall-hung washdown toilet, you get these benefits:

Design freedom – choose a toilet bowl from any leading ceramic manufacturer; pair with stylish Sigma series flush actuators or compatible flush buttons
Easy cleaning – clean the entire floor with a damp mop, no bending or kneeling
Improved accessibility – requires less space than a standard toilet, enhancing safety and comfort; adjustable bowl height meets personal preference or ADA guidelines
Water savings – built-in dual-flush, 1.6 / 0.8 GPF or 1.28 / 0.8 GPF saves thousands of gallons every year
Superior function – engineered Geberit fill and flush valves eliminate problematic chains and flappers that corrode and fail

For proper stud construction (wood or steel) water supply connection, drainage and venting requirements see the installation instructions:
- 111.335.00.5 and 111.902.00.5 (, 4.9 MB) (pre-August 2025)
- 111.335.00.7 and 111.902.00.7 (, 4.4 MB) (available August 2025)
Includes Geberit Duofix carrier frame with Sigma concealed tank, water supply stop, drainage elbow, fill and flush valves pre-installed; mounting hardware
Requires compatible wall-hung toilet bowl to complete installation. See our Clean Design (, 5.8 MB) brochure for a list of compatible bowls.
Pair with stylish Sigma series flush actuators or compatible remote flush buttons (order separately)

See our Clean Design (, 5.8 MB) brochure or use the EPA WaterSense Product Search to find water saving EPA WaterSense combinations with Geberit
Live in or specifying a project in California? Check out the California Energy Commission (CEC) Appliance Efficiency Database to locate compliant Geberit products
Search the EPA WaterSense Rebate Finder to find local agencies offering rebates for installing water saving devices
Refer to USGBC for LEED water saving points