Dudley Universal Syphon Toilet Repair Kit — 372687 / FTB12964
Dudley’s complete repair kit for lever operated cisterns. Includes the Turbo Edge adjustable syphon, Hydroflo compact telescopic bottom inlet valve (delay action), and a chrome plated front flushing lever. True air-gap delay fill saves water and supports BREEAM compliance.
Key features
- Complete kit: Syphon, Delay-Action fill valve & chrome lever
- Turbo Edge syphon: Compact, adjustable 191–241mm (7½"–9½")
- Hydroflo inlet: Compact brass-tailed telescopic bottom inlet, 203–292mm adjustment
- Delay fill / True AG Air Gap: Refill only after flush completes — water-saving
- Fully captive fixing pin: Eases installation (no removal required)
- Duoflush convertible: Standard — convertible to single flush with 6/7/9 litre volume settings
- WRAS approved; UK manufactured components
Performance & format
- Syphon height: Adjustable 191mm–241mm (7½"–9½")
- Inlet adjustment: Telescopic 203mm–292mm (8"–11.5")
- Brass tail: Professional ½" brass tail connection
- Operation: Light-touch user-friendly flush action
- Quiet fill: Patented integrated quiet fill action
What’s included
- 1 × Turbo Edge adjustable syphon (fits ceramic & plastic WC cisterns)
- 1 × Hydroflo compact brass-tailed telescopic bottom inlet valve (delay fill)
- 1 × Chrome plated front flushing lever
Also sold separately — see buttons below for individual part listings.
Installation & Tips
Turbo Edge is designed for quick retrofit: captive yellow fixing pin means you don't need to remove it for fitting. Adjust the syphon and inlet heights to the required cistern levels, secure the brass tail, and fit the chrome lever. Delay-fill ensures refill begins only after the flush is complete — reduces water waste.
Check before you buy
- Your cistern is lever operated (not button/touch)
- The syphon needs to fit into the available downleg height (191–241mm)
- You want a delay action fill for water saving and BREEAM support
FAQs
What does the delay action fill do?
The delay action (True AG air gap) prevents the cistern from refilling until the flush cycle has completed, saving water and preventing backflow.
Will the Turbo Edge fit my cistern?
Turbo Edge fits most ceramic & plastic WC cisterns and retrofits to all Dudley downlegs including Turbo 88 Adjustable & Fixed Height, S44R and S1-11.
Is the Hydroflo inlet suitable for tight installations?
Yes — the Hydroflo compact design prevents catching in tight cisterns where the inlet is close to the syphon or outlet valve.
Is this kit WRAS approved?
Yes — the kit contains WRAS approved components and is manufactured to UK standards.