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Concealed Tank Toilet Systems

Geberit Duofix Carrier with Sigma Concealed Tank, 2 x 6 installations for wall-hung toilets. 

Geberit 111.335.00.5 Product Specifications In-Wall Duofix carrier system and Sigma concealed tank with actuator flush panel or pneumatic push button for wash-down wall-hung toilets. Concealed toilet tank system shall fit within minimum 51⁄2" (146 mm) framing wall or plumbing chase, with wood construction or steel framing members placed 193 ⁄4" (500 mm) apart. Framing members should be capable of supporting a 880 pound (400 kg) load without damage to the wall. Water supply shall have flow diameter no smaller than 1⁄2" (13 mm) copper tube, and a minimum flow pressure of 2 PSI (0.01 MPa). The toilet bowl shall be a third party listed low-consumption 1.6 GPF (6 LPF) or 1.6/0.8 GPF (6/3 LPF) dual-flush 2-hole wallhung type. The carrier frame shall be adjustable for bowl rim heights from 15" to 19" (381 to 483 mm). Actuator flush panels shall be diecast zinc, molded plastic or fabricated stainless steel and plated to preserve material integrity. All components shall be compliant with applicable codes and product standards.

Features & Specifications

  • Height adjustable 47 - 51 in (119 - 130 cm)
  • 19.75" W X 5.5" D X 45 - 49" H
  • For installation of UP320 concealed flush tanks for wall-hung, washdown toilet
  • For installation in wood or steel stud walls that provide support equal to 2"x 6" (5.5") depth
  • For dual flush
  • For room wall or pre-wall construction covered with panels (gypsum or wood)
  • For installation in front of a solid or drywall
  • For installation in room-height partition wall or pre-wall
  • For a floor construction of 0 - 4 in (0 - 10 cm)
  • For 2-hole, wall-hung, washdown toilet with fastening distance 7.1 in (18 cm) or 9.1 in (23 cm)
  • For toilet with dual-flush low-consumption flushing volume of 1.6 / 0.8 GPF (6 / 3 LPF)
  • For toilet seated heights of 15" to 19"
  • Supports up to 880 lbs (400 kg)
  • Water supply connection at center back or at the top
  • Concealed tank for tool-free mounting and repair work
  • Self-locking feet for tool-free alignment of the frame
  • Feet galvanized, infinitely adjustable 0 - 4 in (0 - 10 cm)
  • Concealed tank fully insulated against condensation
  • Fill valve flow rate at 7 psi (0.5 bar): 1.1 gpm (0.07 l/s)
  • Fill valve flow rate at 43 psi (3 bar): 3.0 gpm (0.19 l/s)
  • Flush volume: 1.6/0.8 GPF (6/3 LPF)
  • Fill valve operating pressure range: 1 - 145 psi (0.1 - 10 bar)
  • Fill valve max. fluid temp: 77 °F (25 °C)
  • Tank and frame, water supply, and drainage elbow
  • 2 threaded rods M12 for ceramics fastening
  • Impuls380 fill valve
  • Fastening material