Geberit Duofix Alpha 12 cm Next 2.0 Support Frame for Drywall Installation

Usage

• For dry construction
• For installation in partial or full-height drywall partitions
• For installation in room-height installation walls
• For wall-hung toilets with connection dimensions according to EN 33:2011
• For wall-hung toilets with a projection of up to 62 cm
• For dual-flush systems
• For screed heights of 0–20 cm

Technical Features

• Self-supporting powder-coated frame
• Open-top frame
• Frame prepared for small surface area WC ceramic supports
• Galvanized support legs
• Adjustable support legs (0–20 cm)
• Frame with ø 9 mm drilling holes for fixing in wooden constructions
• Concealed cistern with front actuation
• Condensation-insulated concealed cistern

Delivery Contents

• Geberit Duofix Alpha 12 cm Next 3.0 Support Frame for Drywall Installation
• Cuttable reservation box for inspection opening
• 2 wall brackets
• WC connection kit, ø 90 mm
• PE-HD connection elbow, ø 90 mm
• PE-HD transition sleeve, ø 90/110 mm
• 2 protective caps
• 2 threaded rods M12
• Fixation material

Product Details

• Dynamic Pressure: 0.1–10 bars
• Flush Volume, Factory Setting: 6 and 3 liters
• Large Flush Volume, Adjustable Range: 4 / 4.5 / 6 / 7.5 liters
• Small Flush Volume, Adjustable Range: 2–4 liters

Advantages of the Geberit Support Frame

• Seamless monobloc concealed cistern made of PEHD
• The base shell of the support frame is molded in one piece through a blow-molding process, ensuring consistent strength and eliminating weak points for concealed installations.
• For enhanced reliability, each shell undergoes individual leak testing to ensure no hidden defects. Internal reinforcements prevent deformation of the tank during installation.
• Robust steel frame
• Functional components easily accessible
• Spare parts availability guaranteed for 50 years
• Simple installation
• Over 50 years of experience in concealed cisterns

Advantages of the Geberit Fill Valve

The fill valve is likely the most advanced component of the cistern. After extensive testing in our acoustic lab, we identified and addressed noise issues caused by conventional fill valves. The water inlet is specially designed to minimize noise propagation in the supply line. The elongated downpipe ensures silent filling below the water level. The Geberit Unifill, classified acoustically, has received the NF mark.

To further enhance near-silent insulation, Geberit actuation systems are mounted on small rubber joints that dampen noise from mechanical elements when pressure is applied to the control plate.

Resistance Tests

The cisterns are designed and tested to withstand loads of up to 400 kg.

Quality Control

To ensure impeccable quality, each Geberit concealed cistern undergoes strict inspection before shipping. Inside the packaging, you will find a control ticket certifying the exact weight of the item. This document confirms that the product has been factory-verified according to Geberit quality standards, ensuring reliability, compliance, and readiness for installation.

Control Ticket Breakdown:

Header:

• Kontrollabschnitt = Control Ticket
• Geberit Prod. GmbH = Geberit Company
• VER0007 = Internal number or process verification code

Product-Specific Data:

• Datum: 10.04.2025 at 22:14 → Date and time of inspection
• Art-Nr: 458.233.00.2 → Article number
• Pers. Nr.: 6281;6327 → Identification numbers of the inspectors

Weight:

• Soll-Gew.: 1.82 kg → Theoretical weight
• Ist-Gew.: 1.82 kg → Measured weight
• "N" indicates the measured weight is compliant ("Normal")

Footer:

• Qualitätsbeleg bei Beanstandung mit Ware zurück. Danke. → "Please return this quality certificate with the goods in case of complaint. Thank you."

Conclusion:

This ticket confirms that a quality control check was conducted on April 10, 2025, at 10:14 PM. The measured weight matches the expected weight, indicating compliance. Keep this ticket for any claims.

Installation Video