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Geberit Duofix installation frame (112 cm) with the 12 cm Alpha concealed cistern for wall-hung toilets. Self-supporting, height-adjustable, factory set to 5.8/3 l dual flush, for stud walls and part- or full-height prewalls. Flush plate and pan sold separately.
€161.99
In stock
Order today and receive it on October 27 - November 2 in Spain, or on November 2-4 in the EU and the United Kingdom.
Secure payment with Visa, Mastercard and American Express. Prices include VAT.
Spain 2–7 business days, rest of the European Union and the United Kingdom 6–8. Orders confirmed on a business day before 14:00 are prepared the same day. See Shipping and Payment Methods.
Free when the product is faulty, arrives damaged or does not match the order. If you simply change your mind, the return costs £34.90 from the United Kingdom and €24.90 from Ireland and the rest of the European Union, and is free within Spain; the product must not have been installed or used. See Returns, Exchanges and Warranty.
Every product is new and sealed. 3-year legal guarantee; the manufacturer’s commercial warranty applies in addition where it exists. Customer support in Spanish and English, Monday to Friday.
The Geberit Duofix Alpha 112 is a self-supporting, powder-coated steel frame with an integrated 12 cm Alpha concealed cistern for wall-hung WCs. The blow-moulded cistern is insulated against condensation, conforms to EN 14055 class II and is set at the factory to 5.8 / 3 litres, with the full flush adjustable to 4, 4.5, 6 or 7.5 l and the part flush to 2–4 l. The water supply enters at the rear or top centre through an R 1/2″ connection unit with integrated angle stop valve.
The frame is 50 cm wide and 112 cm high, takes floor build-ups from 0 to 20 cm and supports wall-hung pans with EN 33 connection dimensions and projections up to 62 cm. It can be fixed in metal or timber stud walls or in part- or room-height prewalls; galvanised leg supports and plastic foot plates are adjustable. Before buying, choose a Geberit Alpha-series flush plate (front actuation, not included) and check that your pan matches the 90 mm connection set; a 90/110 mm adaptor is supplied. A conduit for an AquaClean shower-toilet supply and a fastening point for an electrical connection are pre-installed.
Specifications are taken from Geberit’s UK product catalogue, which prevails in case of discrepancy. Geberit Sales Ltd guarantees Duofix frames and concealed cisterns for 10 years, and spare parts remain available for 25 years, in addition to your statutory rights.
| Brand | Geberit |
|---|---|
| Model | Duofix Alpha 112 cm |
| Range / Collection | Duofix / Alpha |
| MPN / Manufacturer code | 458.039.00.2 |
| EAN / GTIN | 4064746044786 |
| Finish / Colour | Blue / white (powder-coated steel frame, white cistern) |
| Product type | Concealed cistern frame |
| Installation type | Concealed (in-wall / prewall) |
| Material | Powder-coated steel frame, galvanised legs, plastic cistern and foot plates |
| Flush volume | 5.8/3 l (factory); full 4/4.5/6/7.5 l, part 2–4 l adjustable |
| Flush actuation | Front-operated flush plate |
| Outlet diameter | 90 mm |
| Water inlet position | Top/rear left (concealed cistern) |
| Connection size | R 1/2" |
| Min water pressure | 0.1 bar |
| Max water pressure | 10 bar |
| Cistern type | Concealed cistern |
| Cistern depth | 120 mm |
| Width | 500 mm |
| Depth | 120 mm |
| Height | 1120 mm |
| Wall type suitability | Metal / wood stud walls; part- or room-height prewalls; room-height partition walls |
| Height-adjustable frame | True |
| Floor construction range | 0–200 mm |
| Fixings included | True |
| Compatible pans / flush plates | Wall-hung WCs to EN 33 with projection up to 620 mm; Geberit Alpha flush plates (front actuation) |
| Included in box | Duofix frame with Alpha 12 cm cistern, R 1/2" supply unit with angle stop valve, service-opening protection box, 2 wall anchors, 2 stud brackets, WC connection set ø 90 mm, 90° PE-HD connection bend, 90/110 mm adaptor, fastening and protection material |
| Standards | EN 14055 Class II (cistern); EN 33 connection dimensions |
| Approvals | CE, UKCA |
| Guarantee | 10 years |
