Wall-hung WC installation frame GROHE Rapid SL 1.13 m model 38536001

The GROHE Rapid SL wall-hung WC installation frame 1.13 m (model 38536001) is a steel support system designed to carry and secure wall-mounted toilets with an in-wall cistern and concealed flush mechanism. Intended for both new construction and renovation projects, the frame provides a stable, load-bearing structure that allows the toilet pan to be mounted off the floor, creating a minimalist and easy-to-clean bathroom appearance while preserving service access to the flush mechanism.

Advantages

The steel construction offers high load-bearing capacity and long-term durability while fitting standard installation depths. The integrated in-wall cistern mounting points and preconfigured connection positions simplify installation and reduce on-site adjustments. Concealed installation hides piping and the cistern behind the finished wall for a neat aesthetic, and the design allows straightforward maintenance access through the flush plate area without removing wall finishes.

Suitable for

• Residential bathrooms where a wall-hung toilet is desired
• Commercial washrooms in offices, hotels, or public buildings
• Renovation projects requiring concealed cistern solutions
• New builds where minimalist bathroom design and easy floor cleaning are priorities

Key specifications

• Frame height: 1.13 m
• Material: steel frame suitable for wall mounting
• Compatibility: designed for wall-mounted WC pans with concealed cistern and flush mechanism
• Load capacity: engineered to support typical wall-hung toilet loads (static and dynamic)
• Installation type: in-wall/concealed installation with accessible flush plate area
• Adjustability: mounting points and feet allow alignment to finished floor and wall surfaces

How to use

Position the GROHE Rapid SL frame at the intended location and secure it to the structural wall and floor according to installation instructions and local building codes. Connect the in-wall cistern fittings and supply line following manufacturer guidelines, then mount the waste outlet and align the frame height to the finished floor level. After fitting the flush mechanism and testing for leaks, close up the frame with appropriate wallboard or finishing material, leaving access to the flush plate opening. Finally, attach the wall-hung toilet pan to the frame anchors and install the flush plate to complete the concealed installation.

Usage recommendations

Use certified installers or trained plumbers for mounting and connection to water and waste systems. Verify structural wall suitability and follow local regulations for fastening and waterproofing when integrating the frame into finished walls. Test the cistern and fittings before covering the frame with wall finishes to ensure correct operation and to simplify future maintenance.