Fluidmaster, Black PRO45B Fill Valve with Brass Shank, Pack of 1

Eazy to fix, weel build and quite. Highly recomanded. Good design too.

We've a push-button loo in our new place. I've worked with traditional ballcock-based pull-handle loos in the past, but this approach was all new to me.And when our cistern started filling in a repeatedly stop-start way, clanging the pipes each time it did so, I had to find a way of fixing it.So, I watched a few YouTube videos. One plumber recommended this device. Checking reviews on other sites indicated that it's highly recommended by professionals. Notably, there's also a video by Fluidmaster itself explaining how they recommend fitting the valve, which is worth a view.The price of this item goes up and down on a daily basis, so I'd keep an eye on it for a few days if I were you.Fitting it in my case was easy and took 30 minutes. Admittedly I'd had a rehearsal a few days earlier removing the old fill valve to see if it could be repaired.But this is basically a swap-in part, in a system designed to be both modular and to avoid interconnection. It looks bigger in the picture here on Amazon, which worried me. I worried the brass shank fitting was too large for my existing attachment. But I took a leap of faith based on that YouTube plumber's recommendation.Before installation, I just adjusted its length/height to match the existing valve. I also fitted the small in-pipe flow regulator widget they provide. We're mains-fed and the water pressure isn't amazingly high, but I figured the flow regulator would help reduce noise. And it does. Even with the flow regulator in place, the cistern fills in less than a minute. It's not silent, but the bottom-filling approach of this valve means it's more of a quiet hissing sound, compared to water being poured onto water, which is the sound the previous valve made. There's no bang or clang when the cistern is full.Once fitted and with the water turned back on, I had to adjust the little thumb screw to optimise the water level in the cistern to just below the overflow pipe. That wasn't hard, and was completed after a few test flushes.All in all, very happy. It's certainly a lot less fussy than the ballcock valves of old.

I put one of these in each of our toilet cisterns and they work great.Adjustments are a bit plasticky, and it can be a bit tight in the corner, but when you have it adjusted to the right position it works fine, and it is so much quieter than our old ones. Almost completely silent.

We had a job done by a plumber, and as usual he'd used the cheapest parts to save money. (the fill valve he used cost around £11 I think.The fill valve was dripping and wouldn't close off properly.Took a chance on the Fluidmaster after reading a few reviews, and watching a few videos, and it's almost silent when refilling. The other one was like a jet taking off when it was re-filling.Dead easy to fit.There's a small insert you put in the end of the threaded brass end part, if you have high pressure. I used that part and the fill valve works great. I didn't try it without so I can't say what difference it makes.We have another toilet that is extremely noisy when filling up and I'm going to change the valve for one of these when I get time.

Product was perfect, easy installation and instructions. Unless you’re repairing a pre installed one you do not need Amazons recommended seals.

I have fitted a lot of these over the years they are easy to adjust and strip down if you have a problem the most thing i love is the brass shank re-assuring when you tighten it to a service valve, I would say just one caveat though make sure you have sufficient room in cistern to accommodate this valves float with flush unit,

Initial impressions after a few days of installation are positive. Having had a previous inlet valve (fluidmaster 400A) replaced with a like-for-like replacement this was soon followed by water hammer, occurring when the adjacent sink tap was turned on whilst the loo was refilling after flushing.I had 5 different plumbers in to try and fix the problem. This ended up costing me hundreds as I had a new tap and a water hammer arrestor fitted. But neither helped fix the problem. Partially closing the loo and sink valves decreased the hammer but made the noise from flushing or the tap much more noticeable throughout my house.I saw the Fluidmaster 45b advertisement saying it stops or reduces water hammer and so decided to give it a go. I also viewed the fluidmaster bottom entry inlet valve installation video on YouTube, and decided I'd give it a go rather than pay another £80 to a plumber. I found the installation just as easy as the video suggested. Upon removing the old valve I noted it did not contain the small water pressure reducing 'bung' and so ensured I fitted this (supplied with the 45b valve) into the 45b prior to installation. I believe this device, along with the brass thread at the bottom of the valve is the reason why (fingers crossed) the water hammer has now disappeared whilst the refill is ultra quiet, even with all valves now turned back to fully open.If only I'd done this from the outset I'd be about £400 better off!

Good replacement. I'm no plumber but managed to fit this to our consealed cistern and resolve our leak issue. Brass shank is a bonus, faulty one was plastic.Edit: This valve developed a fault a couple months after fitting. Now sticks after flushing and have to run cold water tap to get it to release. Can see from other reviews this is a common problem and possible design flaw. Have to put up with it for now until I can get the panelling off to check the concealed cistern. Very frustrating, but at least there's no leak.