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Geberit Duofix 500 x 1120mm Wall Hung WC Frame

Available Variants: With Flush Plate Delta 21 / With Flush Plate Delta 50


MFC CODE: 458.118.21.1


RRP: £463.76


3 Working Days Approx

Shipping: £6.95

Other Variation Available
OP-142039 - With Flush Plate Delta 21
+  Read what's included.. & options available
Please Note all the measurements are in 'mm'
Colour Gloss Chrome Plated
Country of Origin Germany
Cistern Included Yes
Flush Type Dual
Full Flush Volume in litres 6
Half Flush Volume in litres 3
Width 500
Height 1120
Flush Plate Included Yes
Water Supply Connections Rear or Top Centre

Geberit Duofix 458.118.21.1 Details

The Geberit Duofix Wall Hung WC Frame is a self-supporting, powder-coated frame that comes in a gloss, chrome-plated finish. Designed with 9mm holes for fastening to wood-frame construction, this unit is compatible for use with Geberit Duofix wall anchors and comes prepared for support brackets ideal for WC ceramic appliances with small contact surfaces. Equipped with conduit pipe for connection of Geberit AquaClean shower toilets, the water supply for this product connects on the top or rear of the unit.

  • Available in different variants : With Flush Plate Delta 21 and Flush Plate Delta 50 - [Optional]
  • Size: 500 x 1120mm [width x height]
  • Comes in gloss chrome plated finish
  • Application purposes:
  • For drywall construction
  • For installation in part- or room-height prewall installations
  • For installation in room-height installation walls
  • For wall-hung WCs with connection dimensions in accordance with EN 33:2011
  • For wall-hung WCs with projection up to 620mm
  • For floor constructions 0–200mm
  • Self-supporting frame, powder-coated
  • Frame top open
  • Frame with Ø 9 mm drilling holes for fastening in wood frame construction
  • Frame with holes to receive Geberit Duofix wall anchors for elements with frame top open
  • Frame prepared for support brackets for WC ceramic appliances with small contact surfaces
  • Galvanized feet
  • Feet adjustable 0–200mm
  • Foot plates made of plastic
  • Foot plate depth suitable for installation in U-profiles UW 50
  • Connection bend can be mounted without tools
  • Concealed cistern with front actuation
  • Concealed cistern fully insulated against condensation
  • Cistern fulfils standard requirements in accordance with EN 14055, Class II
  • Immediate post flush possible with factory setting
  • Water supply connection on the rear or top centre
  • Equipped with conduit pipe for feed pipe for connection of Geberit AquaClean shower toilets
  • With fastening option for electrical connection
  • With Delta concealed cistern 120mm
  • Refer technical drawing for more technical specifications
  • Maximum operating temperature, water: 25 °C
  • Flush volume, factory setting: 5.8 and 3 l
  • Flush volume large, adjustment range: 4.5 / 6 / 7.5 l
  • Flush volume small, adjustment range: 3-4 l
  • Scope of delivery:
  • Angle stop valve R 1/2", with adaptor ring
  • Protection box for service opening, made of polystyrene foam
  • 2 distance bolts
  • Flush plate Delta21 or Flush plate Delta50 - as per option selected
  • 2 wall anchors
  • Connection set for WC, Ø 90 mm
  • Connection bend 90° made of PE-HD, Ø 90 mm
  • Adaptor socket made of PE-HD, Ø 90 / 110 mm
  • 2 protection plugs
  • Cup for flush volume reduction 4.0 / 2.6 l
  • Crossbar for panelling support
  • 2 threaded rods M12
  • Fastening material
  • Please refer Installation Instructions PDF from below.

Please Note: Any boarding must be fixed tight up against the Duofix frame's face and screwed directly to the frame. The cistern can be operated with used water rainwater provided it is passed through a filter system first. The flush valve features settings to enable either a 6 l and 3 l flush or a 4.5 l and 3 l flush. It must be used with pans designed for low volume flush

Info / Size (mm)

  • Frame
  • Width: 500 mm
  • Height: 1120 mm

Additional Info

Product Variations Info & MFC Code
  • Available variations along with manufacturing code
  • With Flush Plate Delta 21 - 458.118.21.1
  • With Flush Plate Delta 50 - 458.119.21.1

Total: £264.35 3 Working Days Approx QS Supplies

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Questions & Answers

Submit Your Questions 1 Questions Asked

Have a question about this item? Ask our tech team. We aim to reply within 72 hours. If you want to know get answers fast, please call us on 0116 251 0051

Sarah Asked :
We have been looking at using 458.118.21.1 frame; however, finding it difficult to understand the height from the drawings at the shortest this frame can be set at. The top of the wc unit we are making is 838mm. Can we make this fit? Thank you. Sarah

Answered By QS Team :
To confirm, you can raise the frame and cistern by 200mm (20cm) but please remember whatever you raise the height by will raise the height of the toilet and the height of the flush plate and the shelf (everything moves up together). The frame and cistern can be lowered by up to 50mm (5cm), but this will depend on how low the trap is on your pan - if it is low then you may not be able to lower the toilet by up to 50mm.

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At QS Supplies, we use trustworthy carriers for deliveries across UK, Scotland and Ireland. We also follow an up-to-date tracking system to keep you posted on the status of your orders. Delivery dates are approximate, and therefore, we suggest you do not schedule any installation work until you have received the items. To learn more about our delivery service, click here. Please do not book Tradesmen until the items are safely received and thoroughly checked.


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