Thomas Dudley Ltd Adjustable Siphon 237mm (9756F)

£ 20.75INC VAT

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Thomas Dudley Ltd Adjustable Siphon 237mm (9756F)

2-part duo-flush siphon. Easy to install and can be serviced without disconnecting water supply or dismantling cistern. Fits most lever-operated cisterns. Suitable for low level installations. Dudley Duoflush delivers a water-saving reduced flush when lever is held down and a full flush when lever is depresssed and released.

  • Water Efficient
  • Manufactured in the UK
  • Full & Reduced Flush
  • Adjustable from 7½-9½"
  • Easy to Install
  • Water-Saving Reduced Flush
  • 6/7/9Ltr Convertible
  • Built-In Internal Overflow

More Info

View all: Thomas Dudley Ltd Fill & Flush Valves

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Rated 5 out of 5 by from Great choice I wen into my Screwfix branch having already researched online. I got 3 out and this unit was simply the best. Got it to the job and it couldn't have been any better. Once spaced out and trimmed the fitting was a doddle. Would buy again or definitely this manufacturer.
Date published: 2022-08-04
Rated 5 out of 5 by from Good fit and does the job Needed new one in cistern, used these before, great design and do the job. Have to drain old this time. What we like about this design is next time can undo top bit. Then leaving white pipe in, just disconnect the blue section and put new section on. This will save time for future repairs, as won’t have to drain down next time. Fills faster than the old one, with bigger flush, so clears better!
Date published: 2022-07-01
Rated 4 out of 5 by from Siphon More expensive than the rest but better quality with the ability to service without having to remove / drain the cistern. Instructions were a bit short & sweet but sorted quick enough. As usual, Screwfix great service over bank holiday weekend !
Date published: 2022-06-04
Rated 1 out of 5 by from Missing info. in Specification Once installed, I cannot pull out the yellow plastic pins that fixes the white part of the siphon to the blue part of the siphon because there is not enough room in my cistern to pull the yellow pins out. The specification should state what the minimum internal dimensions of the cistern should be. It's not good enough to simply advertise as "Fits most lever-operated cisterns" - what exactly does that mean ? e.g. does it mean that it fits 50.1% of lever-operated cisterns ? If so, then that means it does NOT fit 49.9% of lever-operated cisterns, which isn't very helpful. The next time I need to replace the diaphragm, I will have to disconnect the water supply and dismantle the cistern again !!! The whole point of this product is to save time having to disconnect the water supply and dismantle the cistern !!!
Date published: 2022-06-04
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Is this compatible with the Thomas Dudley Ltd Acclaim Side-Inlet Dual-Flush Lever Cistern 9Ltr (4047F) please

Reference to specific cistern: If not compatible, which of the siphons you list is the right one? Thanks.
Asked by: Beermad

Does this require a float valve as well or is it built In?

Asked by: Karlb23
Thank you for your enquiry. This item flushes the cistern, if you require an inlet valve that lets the water in. You will need to purchase this also separately, if your old one is not working If you have any further questions, please contact us on 0121 530 7000 Kindest Regards TYDE Customer Service Team
Answered by: Dudley Sales TDL
Date published: 2022-06-27

Is this turbo 88

Is this the "Thomas Dudley Turbo 88 Adjustable Syphon" as per Thomas and Dudley catalogue?
Asked by: JoJo2222

Suitable replacement for S9B?

Hello there, Would this product be suitable to replace an old SB9 single part flush?
Asked by: Barry5000

Will this work with a right hand side flush?

Asked by: Ecky66
It worked OK for me with a right hand flush.
Answered by: BikerRichard
Date published: 2021-01-22
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Brand Thomas Dudley Ltd
Connection Type 1½" BSP Connection
Manufacturer Guarantee 5 Year Manufacturer's Guarantee (T&Cs Apply)
Pack Size 1
Pieces in Pack/Case 1
Product Height 290 mm
Product Length 237 mm
Product Type Adjustable Siphon
Volume 9 Ltr

Product contents

Siphon, backnut, seal, coupling nut, washer and c-link.