Grohe cistern frame SL 3 in 1 Set 1.13m for Wall Hung toilet

Grohe Rapid SL 3-in-1 Concealed WC Frame & Cistern Set

The Grohe Rapid SL 3-in-1 Concealed WC Frame & Cistern Set is a premium installation system designed for modern wall-hung toilets, delivering exceptional strength, reliability, and water efficiency in one complete solution.

Built around a powder-coated, self-supporting steel frame, the system is engineered to support loads of up to 400 kg, making it suitable for both solid wall and stud wall installations. The robust frame ensures long-term stability and secure toilet mounting.

The integrated GD 2 concealed cistern features a dual-flush system (6 L / 9 L), allowing users to reduce water consumption without compromising flushing performance. A WRAS-approved filling valve ensures full compliance with UK water regulations.

Designed for comfort as well as performance, the cistern incorporates whisper-quiet fill technology, minimising noise during refilling and flushing—ideal for residential bathrooms and en-suites. The insulated cistern also provides condensation protection, preventing moisture build-up inside wall cavities.

Installation flexibility is a key advantage of the Rapid SL system. The water supply can enter from the left, right, or rear, and the set includes a depth-adjustable 90 mm outlet bend, making it suitable for a wide range of bathroom layouts and renovation projects.

The system is completed with a sleek chrome flush plate, offering clean front actuation while maintaining a minimalist, concealed appearance.

Product Details

• Product Type: Concealed WC frame & cistern set
• Frame Material: Powder-coated self-supporting steel
• Load Capacity: Up to 400 kg
• Cistern Type: GD 2 concealed cistern
• Flush System: Dual flush – 6 L / 9 L
• Valve Approval: WRAS approved
• Noise Reduction: Whisper-quiet fill technology
• Condensation Protection: Insulated cistern
• Water Inlet: Left / Right / Rear
• Outlet: Depth-adjustable 90 mm bend included
• Flush Plate: Chrome, front actuation
• Certification: TÜV certified
• Warranty: 10-year manufacturer’s guarantee

What’s Included

• Concealed steel WC frame
• GD 2 dual-flush concealed cistern
• Chrome flush plate
• Depth-adjustable outlet bend
• All required fixings and installation components

Why Buy the Grohe Rapid SL 3-in-1 Set?

• Heavy-duty steel frame supporting up to 400 kg
• Dual-flush system for improved water efficiency
• WRAS-approved components for UK compliance
• Quiet fill operation for a more comfortable bathroom experience
• Condensation-protected cistern prevents moisture damage
• Flexible installation for new builds and renovations
• TÜV-certified quality backed by a 10-year warranty