Fluidmaster Concealed Cistern 6Ltr Product Code: 30168

Easy to install 6Ltr cistern complete with Part 4 inlet valve and push-button cable dual-flush valve. Twist and release action for easy maintenance. Fully height adjustable internal overflow and extra-long 640mm cable for easy installation. Supplied with fittings.


  • Cable Button Operated
  • Dual-Flush
  • Water-Saving Adjustable Full/Half Flush Volumes
  • Quick-Release Button Eliminates Cable Damage
  • 6Ltr Cistern


W x D x H: 415 x 150 x 285mm.
Additional Information
Technical Specification
  • Brand : Fluidmaster
  • Product Height : 285 mm
  • Product Type : Concealed Cistern
  • Product Width : 415 mm
  • Cistern Capacity : 6 Ltr
  • Product Depth : 150 mm
  • Pack Size : 1
  • Manufacturer Guarantee : 1 Year Guarantee
  • Pieces in Pack/Case : 1
  • Toilet Fitting Type : Cisterns
Product Contents
Cistern, push-button valve, Part 4 bottom inlet fill valve and fittings.
Delivery & Returns


Standard delivery service up to 3 working days: €8.95

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€59.95 Incl. 23% VAT

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Fluidmaster Concealed Cistern 6Ltr is rated 4.4 out of 5 by 43.
Rated 4 out of 5 by from Here Centimeters really matter In standard 76cm high back to wall furniture with a removable top ignore height advice - install as high as possible in cabinet - 2 cm higher than instructed. With bracket first installed following instructions the bottom of the flush outlet was 37mm above floor, as was the centre of the loo's flush inlet!. However the swept bend of the flush pipe supplied would lose a further 10cm of height. Fluidmaster do a right angled flush pipe 67559 which in my opinion should rightly be supplied in box as an alternative flush pipe to use as many modern installations will need it. A shorter (or cut down) thread projection on the flush valve supplied could also gain a further useful centimetre. A concealed cistern properly designed for a 50cm back to wall cabinet could be slightly wider (eg 45cm) and less deep, As things stand the relative heights of the bottom outlet on cistern and inlet to some newer loos will be found just too close. Water does not like flowing uphill.
Date published: 2017-11-02
Rated 5 out of 5 by from Superb and comes with extras Decided to replace the old cistern in cloakroom - and always trust Fluidmaster as the inlet valves last in our hard water. I was actually pleasantly surprised that the cistern comes pre fitted with the inlet and the dual button flush. It ALSO comes with a flush pipe AND a flush cone - both of which I'd already bought so returned (along with the other Fluidmaster button flush). When you factor in the parts it's really good value. I agree with the other reviewer about the mounting bracket. I worked it out but nearly assumed it was missing. Seems faffier than screw holes but there must be a reason for it....surely.
Date published: 2017-10-13
Rated 5 out of 5 by from Excellent product Easy to fit and virtually silent in operation. If fitting in a shallow 200mm deep housing, you will need the right angle flush pipe rather than the swept pipe supplied, but no worries, it is stocked at Screwfix.
Date published: 2017-08-10
Rated 2 out of 5 by from concealed cistern easy to install but leaked from the fill valve bottom nut and the flush valve bottom nut. had to drain down and seal threads with jointing paste. will go for the cheaper flomasta version next time
Date published: 2017-08-01
Rated 5 out of 5 by from Internal cistern Bought one of these internal cisterns to replace an old one for a customer. Went in like a dream no problems and up to yet no leaks! Ill have to see about reliabilty but being a fluidmaster i think there will not be any problems. Will buy this again.
Date published: 2017-07-19
Rated 4 out of 5 by from Fluidmaster concealed cistern Purchased this product because this cistern had really good reviews. Installing the cistern was straight forward and all looked well until I noticed water weeping from the flush pipe. The leak was coming from the pre assembled pipework and not from the customer side of the installation. "Do I take it back or (potentially invalidate the warranty) have a look myself" I thought to myself. I decided to strip it down and found that the internal seal around the exit pipe had pieces of black plastic embedded in it. Removed the plastic, dried all the components and flipped the seal over so that the marks where the plastic had been now faced the flush rather than the cistern itself. Refitted the cistern and all was well. Shame that poor quality control in the factory let this happen. Otherwise a good piece of kit.
Date published: 2017-01-13
Rated 4 out of 5 by from Fluidmaster quality Fluidmaster products are very good, and this is no exeption. Unlike many cisterns and components out there you can have some confidence in fitting Fluidmaster, its a brand I have come to trust.
Date published: 2016-12-17
Rated 5 out of 5 by from Cistern easy to fit! Once you've sorted out exactly how the cistern is fixed it's a piece of cake! Instructions on using the bracket would be easier with an illustration. More to the point, Lisa at Fluidmaster was very helpful and sent me a picture. I shall certainly try to use Fluidmaster products in the future, mainly because they helped!
Date published: 2016-09-29
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