Geberit Duofix 1120mm Concealed Wall-Hung Frame & Sigma Cistern

Reference: 43375
Code: 111.383.00.3
Next Day Delivery
RRP £520.80
Save 30%
£364.56 INC VAT
1 In Stock
Delivery in 3-7 days From £6.95 Information
For delivery on Wednesday. Order in next 1 days | 19 hrs | 17 mins
Product Information

Refined and enhanced by the master engineers at Geberit, this new concealed frame is a state-of-the-art installation option for wall-hung toilets

This durable, feature-heavy frame is designed to be fitted inside your bathroom wall, with an emphasis on quick, hassle-free installation. It stays hidden from view, with just the flush plate and toilet pan left visible on the outside. This creates a clean, minimalist look, ideally suited to contemporary bathroom settings. This frame houses a dual-flush Sigma cistern with front actuation, fully insulated against condensation for extended lifespan.


  • Concealed cistern with front actuation - fully insulated against condensation
  • Self-supporting, powder-coated frame
  • Frame with ø9mm drilling holes for fastening in wood frame construction
  • Frame prepared for support brackets for WC ceramic appliances with small contact surfaces
  • Galvanised feet, non-slip leg supports, rotatable foot supports & 0-20mm feet adjustment
  • Foot plate depth suitable for installation in U-profiles UW 50 and UW75 and Geberit Duofix system rails
  • 5.8 litre & 3 litre factory flush settings - small flush adjustable from 2-4 litres
  • Connection bend can be mounted without tools at different depths - adjustable range 45mm
  • Flush plate not included - see required products


  • For drywall construction 
  • For installation in part or room-height prewall installations 
  • For installation in room-height installation walls 
  • For installation in part or room-height Geberit Duofix system 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
Product Name
Geberit Duofix 1120mm Concealed Wall-Hung Frame & Sigma Cistern
Product Code
Dimensions (W x H)
500mm x 1120mm
Size may vary depending on options selected
1 year
Adjustable Feet / Adjustable Brackets / Adjustable Height / Soundproofing / With Fixings/Fastening Set
Flush Type
Dual Flush
Flush Button/Lever
Flush/Push Button
Flush Volume
Actuation Type
Front Actuation
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