Geberit Sigma Frame & Concealed Cistern for Wall-Hung WC, 120mmD x 1120mmH


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This Geberit 112cm Sigma Duofix frame & concealed cistern can be used in drywall part height or room hight prewall installations and used with wall hung toilet pans with a projection up to 620mm.

Designed to last, Geberit Sigma frames incorporate tried and tested materials which will serve you for years to come. Installed over 60 million times, Geberit concealed cisterns represent the ultimate tried and tested solution.

This cistern & frame is equipped for installation requiring electrical connections. This means touchless flush plates, shower toilets, odour extraction units, and other devices can be installed or retro-fitted quickly and easily.

Known for their reliability, every single blow mold Geberit cistern is leak-tested before it is delivered. The 50-year guaranteed spare parts availability provides long-term security.

Reasons to Choose a Geberit Sigma Frame:

  • Strength-tested to bear a weight of up to 63 stone (400kg) when combined with Geberit ceramic wall hung toilets
  • Installed over 60 million times, Geberit concealed cisterns represent the ultimate tried-and-tested solution
  • Tool free maintenance
  • Geberit stock spare parts for 50 years for Sigma concealed cisterns
  • Every Geberit cistern is individually tested to guarantee water tightness
  • Acoustic solutions with the Duofix frame mean it’s all quiet behind the scenes
  • Compatible with over 130 Sigma flush plate finishes & styles & compatible with all Geberit flush buttons
  • WRAS Approved
  • Raw Material to End-of-Life Environmental Product Declaration (EPD) in accordance with EN 15804+A2+AC, ISO 14025 & ISO 21930

What’s Included:

  • Water supply connection Rp 1/2" - R 1/2", compatible with MF, with integrated angle stop valve and hand wheel
  • Protection box for service opening
  • 2 wall anchors
  • 2 fixing brackets
  • Connection set for WC, ø 90mm
  • Connection bend 90° made of PE-HD, ø 90mm
  • Adaptor socket made of PE-HD, ø 90 / 110mm
  • 2 protection plugs
  • 2 threaded rods M12
  • Fastening material


10 Years
Duofix Sigma
Steel & Blow mold plastic
Toilet Frame
Frame Use
Wall Hung Toilet Pans

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