Dudley OSMO® F1

Front access serviceable cistern fitted with the Dudley Turbo Edge syphon. Guaranteed leak-free flush mechanism.


TYDE’s OSMO® F1 is the World’s first front access serviceable syphon cistern, fitted with the New Dudley Turbo Edge® syphon, designed for use with WC furniture and IPS panelling.

Manufactured in the UK by Thomas Dudley, the OSMO® F1 is a new innovative concealed cistern designed to be stylish, versatile and easy to fit and service with minimal disruption to WC furniture or panelling.

We recommend OSMO F1® is only used with a reputable branded manufacturer of WC Pans.

Actuator sold separately

To specify your product click here



  • WRAS approved
  • Made in Britain
  • Unique flush handle
  • Easy to install and service
  • Saves water
  • 10 year warranty
  • Compact dimensions
  • Water regulations compliance in standard height furniture applications
  • Easy for all users
  • Actuator sold separately - Alternative finishes available
  • Stock item - Available for next working day despatch
UK Stock Holding
Quality Assured
Fast and Efficient Delivery