Tri-Shell Jetseal


4/2.6 Litre
5/3 Litre
6/4 Litre
6 Litre Yes
7 Litre Yes
9 Litre Yes


Dual flush Yes
For all washroom urinals
For ceramic cisterns
For concealed cisterns
For individual urinals
Single flush

Inlet Type

Side Yes
Bottom Yes

Installation Type

High Level Yes
Low Level Yes
Close Coupled Yes


Cabe pushbutton
Electronic sensor
Lever Yes
Pneumatic push plate
Pneumatic pushbutton

Overflow Type

Internal Yes
External Yes


  • Tri-Shell Jetseal WC cisterns are ideal for use where there may be the potential for vandalism or misuse and in applications that require an exceptionally long working life.


  • Market-leading vandal-resistant features include:
  • Maintenance saving features include:
  • - WRAS approved Dudley Turbo 88 Duoflush 2 part syphon as standard. This incorporates a Jetseal PTFE diaphragm which also provides an exceptionally long working life. The syphon can be serviced in under 5 minutes without disconnecting the water supply and dismantling cisterns.
  • Side inlet.
  • Internal / external overflow warning.
  • Internal parts comply with the Regulator's Specification.
  • Black and white low level models come with chrome plated metal lever as standard. High level options supplied with chain pull.
  • Suitable for high level, low level and close-coupled installations.


  • 6/7/9 litre convertible full flush.
  • Dudley Duoflush delivers water-saving reduced flush when lever is held down and full flush when lever is depresssed and released.
  • Supports Code for Sustainable Homes and BREEAM.


  • White and black cistern body.
  • Bottom inlet.

Brochure (Dudley_Exposed_Cisterns.pdf, 2,933 Kb) [Download]

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