GROHE 39054000 | Concealed Flushing Cistern

All the components needed to replace existing cistern and connect to pan are included, in eco friendly packaging!! Easy to switch from left to right connection. Found it useful to have a flexible inlet pipe, as this helped with connecting the cistern to existing pipework. Both cisterns installed easily and working well.

As you might expect from Grohe, the build quality is good and tidy. Clean white plastic cistern casing and fitting brackets, inlet valve already assembled and fitted, so is the flush siphon and physical operating cable (not a pneumatic one). Includes L shaped flush pipe and fitting collar and seals, chrome finish Grohe round flush buttons (one quick or one long-flush - reducing water consumption) and bezel. Instructions are mainly diagrammatical and cover a couple of versions of the cistern. Having said that, it was a doddle to fit, easy to work out the bits needing trimming. Most of the challenges were down to our concealed cabinet and pipe routing into it rather than this product. Formulate a considered game plan and you'll be fine. In operation, the buttons correctly supply either a very short, water saving flush or an effective longer delivery only when required. Not a major problem, may be due to our high water pressure, but the short flush can end with a slight 'thump'. However, overall flush and refill noise is well contained behind the panelling and below the cloakroom worksurface.

This is the third toilet I've now installed in the house. The first 2 I went for cheap unbranded cisterns but this time decided to go for a quality make as the price was still reasonable. Oh so much better. Firstly the button feels so much more satisfying and easier to press and then the flush is much better. really sounds to be doing the business. ( possibly combined with a better toilet) rarely need more than one flush whereas others often need or 3 or even 4. Also out of the 2 cheap ones, one of them doesn't always flush without holding the button in. So motto is always buy quality. false economy not to.

Replaced a cistern, which came as part of a unit, from a well known bathroom store, which was leaking. This unit came completely assembled and all fittings were water-tight without the need for any adjustment. I used the original flush pipe to connect to the toilet bowl as it was cut to the correct length. The unit doesn't deliver a vast amount of water for the flush, but I don't think that is unusual, and if you hold the button, the flush clear the bowl. I think this is a well made unit, and I am happy to have spent a bit more to get a solution which I think will now last. I am just a DIYer, who can't find a trustworthy tradesman, so I'm learning about plumbing. If this unit fits your concealed cistern furniture, I suggest this is what you should buy.

The cistern itself is just what we needed but this unit was clearly someone else’s return as it had no bracket to fit it on. We couldn’t wait to return it so had to make something ourselves.

I was a little confused with the comments on this cistern, some said it makes a clunk sound when filled and the location of the inlet valve looked to be on the left from which would not fit my project, but come on surely it's as simple as undoing the inlet nut on the left and repositioning it on the right I said to myself. YES!! it was as simple as I'd thought and as far as the clunking sound when filled from my experience it's one of the quietest cisterns I have fitted and the flush is really powerful. I should've known from my experience of owning a Grohe shower for over 30 years it's never let me down and I doubt this cistern will too, simply fabulous.

Great. Item as described and followed up on delivery! Thanks

Easy to install, tho I have to transfer the supply intake to the right. I don't need to use the pipe that came with it as I reuse the old pipe. Have to cut the supply copper pipe and use flex for easy connection and to absorb the water hammer when valve shut as few people have noticed Only difficulty I found is the fitting of the push button ad I have flushed it needing 2 diameter holes and 2 piece of 18mm board screwed together.. It's not soo noisy.. Time will tell, but it's good quality item from Grohe.