Thomas Dudley Turbo 88 Fixed Height 7.5" Syphon — 316965
The Thomas Dudley Turbo 88 (316965) is a market-leading 2-part fixed height syphon, ideal for replacing components in most low-level lever-operated cisterns. Featuring a unique 2-part design, the body can be removed for servicing while the downleg remains in the cistern. Integrated DuoFlush technology allows for a full flush (press and release) or a water-saving reduced flush (press and hold). This model is 6/7/9 litre convertible and includes a built-in internal overflow.
Identification Guide:
MPN: 316965 | Outlet: 1.5" (38mm) | Height: 7.5" (191mm to spillover) | System: Low Level Lever Cisterns
Choosing the Correct Height
1. New Installation: Measure the water level line (marked at the back of the cistern) and add 1” (25mm) to find your required height.
2. Replacing existing Turbo 88: Measure from the bottom of the threaded tail flange to the spillover point (the moulded ridge on the domed cap). For this listing, that measurement is 191mm.
Note: This is the Fixed Height model. If you need the Adjustable version, see SKU FTB961 or the Turbo Edge SKU FTB6204.
Technical Support & Instructions
Watch: How to measure | How to service
Turbo 88 Fixed Height Sizing Table
| Height (mm) | Syphon Size | Shop Link |
|---|---|---|
| 178mm | 7" | View FTB430 |
| 191mm | 7.5" | Current Listing |
| 203mm | 8" | View FTB432 |
| 216mm | 8.5" | View FTB433 |
| 229mm | 9" | View FTB434 |
| 241mm | 9.5" | View FTB435 |
| 254mm | 10" | View FTB436 |
Essential Spares: Be Prepared
Common Questions
How to convert to Single Flush? Remove the blue body, release the metal C-link, and place the provided black rubber washer over the piston rod and spring before re-assembling.
What are the side plugs for? These adjust flush volume. Removing them reduces the water volume used during a full flush.
Does it have an internal overflow? Yes, provided the spillover point is below any external holes (like the lever hole).