Geberit 111.004.00.4 is a Duofix installation frame with an 82 cm height, featuring the Omega 12 cm concealed cistern. This model is the current version that supersedes the 111.004.00.3 as of January 2025. 
Key Features
Low Installation Height: At just 82 cm high, it is specifically designed for installations under windows, in low-height partition walls, or under sloped ceilings.
Flexible Actuation: The Omega cistern allows for the flush plate to be mounted either on the front or the top, providing more design options than standard tall frames.
Durable Support: The powder-coated steel frame is self-supporting and tested to withstand loads of up to 400 kg.
Water Efficiency: Features a dual-flush system. While factory settings are 5.8 and 3 liters, the large flush is adjustable (4.5 / 6 / 7.5 L) and the small flush is adjustable (3–4 L).
Condensation Protection: The cistern is fully insulated against condensation to protect surrounding wall structures.
Future-Proofing: It includes a conduit pipe for easy connection of Geberit AquaClean shower toilets and a fastening option for electrical connections. 
Installation Details
Adjustability: Galvanized feet are adjustable from 0–20 cm and feature non-slip supports.
Tool-Free Maintenance: Most internal components and the service opening protection box can be installed or maintained without specialized tools.
Compatibility: This frame is specifically compatible with the Geberit Omega rangeof flush plates. 
Scope of Delivery
The package includes the self-supporting frame, the Omega 12 cm cistern, two wall anchors, a WC connection set (ø 90 mm), a 90° connection bend, an adaptor socket (ø 90/110 mm), and all necessary fastening materials. 
Note: The flush plate is not included and must be purchased separately from the Omega collection.