Fluidmaster 400AH PerforMAX Universal High Performance Toilet Fill Valve, Easy Install

I have never done any sort of plumbing repair work ever. I opened this up, turned off the water to my toilet, dropped some towels behind the toilet, and got to work. It was super easy to install, the instructions are well written, and my toilet is quieter now. All around a perfect product. I have a few points that I'd like to make about the instructions. The instructions say that you'll need a sponge and some scissors. I never needed the scissors. To handle the remaining water in the tank, I used the towels. Equipment that I used that wasn't mentioned in the instructions: Vice Grips. They come in handy during this project. If the bolts on your toilet are too tight to twist off with your hands, you'll need something like vice grips to take those bolts on and off. Even if you aren't repairing a toilet, get yourself some vice grips anyway. They are useful around the house. A mirror. I used a mirror with a stand so that I can see the bottom of the toilet. I used my wife's vanity mirror. It worked great! (Don't tell her.) Anyway, I didn't time myself on this repair job, but it was easily less than an hour, and (mind you) I have no experience with this sort of thing.

Oddly enough, I had the toilet fill valve go bad in ALL three of my toilets in about a 3-month period. The toilets weren't too old at only six years since the house was built, but nonetheless they needed replacements all around the same time. We picked this one up on Amazon as I had already bought one from another store and didn't realize that all three ere going to go out around the same time period. This price to this was comparable to other stores and with the convenience that I didn't have to go pick it up. Installation was a breeze. Turn off water, flush, and disconnect the water line. I did have to adjust the height slightly to make the fill hose align more correctly, but that's easily accomplished with this valve. I can't tell that filling is any faster than my old valve, but I will say it's much quieter! My old valves still worked, but were causing my toilet to run occasionally and also had a random "groan" occasionally. Now there's no running and they're all nice and quiet. Pro-tip: Make sure you don't also need a flapper to go along with the valve. I had one flapper that was pretty deformed and was causing the toilet to run. (The valve still needed to be replaced to fix the loud groans though). Overall, pretty happy with this buy. Super easy to install and solved my problem. Hopefully I can get another 6 years out of this before having to replace again.

I wish it looked more fancy but it doesn't matter as it works great on my duo flush toilet! I ordered it for my very compact whitehouse toilet thinking, that since it works with "all toilets", it will fit in mine and be breeze to install...well I was just partially right. The installation is easy and effortless, problem was with the hight of the valve- it stocked up above toilet's tank rim. I could still close the lid on top of the tank, but the fact of elevation itself, was driving me mad. I almost wanted to return it when I realized that my other dual flush toilet (GlacierBay), has very deep tank with small flusher inside. So I swapped the fill valves and now both toilets work efficiently. I can't believe the price. Yes, the design of valve might seem very basic and outdated, but it delivers. I spent may be a week looking for a dual flush fill valve, and not only there is just handful numbers] of them available, but they are pretty expensive. I'm glad I took a gamble on this one. Water does fill quickly and seamlessly, without prolonging or annoying sound and so far (3 months), it is holding just fine. ~~~ *FPN: ^ minimum size- almost 10"H, maximum opening 15"H, ^^ good for all toilets (especially ones made after 1994), with adjustable water level and filling pressure, dual or single flush :) ^^^ comes with everything necessary for installation, ^^^^ assembled in Mexico

I usually purchase a 400A but I thought I would give this newer model a try. It's every bit as good as the 400A. It has excellent instructions for those who are new to changing a fill valve. The instructions are expanded over the 400A's to include using with 3" and Duo Flush valves in addition to the more traditional 2" valve. .As others have said, it is the unit is the same as the 400A with the exception of the roller clamp and hose clamps on the refill tube as well as a spiffy-looking blue cap replacing the black cap. If the internals have changed I can't tell, but it does still use the 242 replacement seal in case you are wondering. The main benefit of this valve is you can adjust the amount of water that goes into the overflow pipe. This is the water that refills the bowl after a flush. If you let too much water flow you will waste water. You need only enough water to fill the bowl. If you don't allow enough water the toiler may not flush correctly the next use. I found that I had to set the clamp down a notch to properly fill my bowl. Previously I was probably only wasting a few ounces of water but why waste if you don't have to? The 400A is a bit cheaper but this is a very worthy alternative in my opinion. This one does seem to fill a bit more quickly and slightly quieter than the replaced unit, hower the replaced one may have been a bit clogged. We have super hard water where I live and these fill valves have a rough life and plug up regularly and need cleaning out to work well again.

This model is a definite improvement upon the classic Fluidmaster design. Though not overly noisy, it doesn't sound noticeably quieter than other fill valves. Where this valve really excels is the rapid refill time. Timing from when I pull the flush handle, it takes just 25 seconds until the valve shuts off. I didn't time my old Fluidmaster valve, but twice as fast would not be an exaggeration — it's the fastest refilling time I've ever seen on a regular 1.6 GPF tank-style toilet. (I suppose you could also say that makes it the quietest, because any noise lasts for such a short time.) IMPORTANT — Take the time to adjust the refill tube control slider. The idea is for the toilet bowl to reach its proper fill level at exactly the same time the tank is filled. If the toilet bowl fills before the tank fill valve shuts off you will waste water. With a bit of trial end error you'll find the perfect position for the slider. Fortunately, it won't take long to do this, because the tank refills so fast! The Fluidmaster 400ARHR High Performance Toilet Fill Valve is an ideal replacement for any standard toilet fill valve. It's well designed, inexpensive, easy to install, works great, and saves water. I might even call it "perfect".

After messing with a stuck float for a couple months ( I knew better), I bought this Fluidmaster PerforMax and in a short 30 min or less, a perfectly working toilet again. The item came in a couple days and installation was completed very quickly. The instructions are thorough and detailed - I suggest reading them first so you get the flow and tank level correct on the first try. I didn't have any re-do's. I have an old 3.5g tank and this works great in it, although it is actually designed for the new 1.6's. The tank fills in about 45 seconds, which is about the same as before. And best of all, NO TOOLS required LOL Although I'm not a plumber, from my experience stuck or poorly moving floats rarely can be fixed and it isn't worth the trouble for a mere 12 bucks or so and 30 min of time. Highly recommend.

I put off dealing with my running toilet for months because I assumed it would be a nightmare to fix. A plumber quoted me $180 just to show up. On a whim I ordered the Fluidmaster 400ARHR instead, watched a single YouTube video, and had it installed and working perfectly in under ten minutes. No plumbing experience whatsoever. The difference was immediate. The phantom flushing is completely gone, my tank fills faster than it ever did with the original valve, and it's whisper quiet — something I didn't even realize I was missing until now. My old valve would hiss and groan for a full minute after every flush. This one fills quickly and shuts off cleanly every single time. The build quality feels solid and the adjustable design made it easy to dial in the exact water level I wanted. Everything needed for installation was included in the box — no extra trips to the hardware store. For the price, this thing is an absolute steal. I've already recommended it to two neighbors who had the same issue and both had the same experience. If your toilet is running, stop overthinking it. This is the fix. Best $15 I've spent all year.

I bought this over a year ago and it has been in use since then. Easy install. Quiet. Seemed solid and has lasted well over a year. However, I noticed that it took a long time to fill the tank after flushing. At the installation time, I rebuilt my main water valve and I thought that I had inadvertently put a kink somewhere in the water line and that was the cause of the slow fill. Then I read some reviews of this product that mentioned slow fill so today I swapped this out with another popular brand. Sure enough, the new product filled wayyy faster- took less than half of the time to fill. This might work for you and seems to hold up over time, if fill time doesn't matter to you. It matters to me so I threw this one in the trash.

There’s not much to be said here really. It is an universal replacement kit that is simple to instal with minimal tools and works as advertised once correctly set in place according to the rather well designed and easy to follow instructions. The last similar one I just replaced lasted 10 or 12 years... Good product, recommended.

Returned as the thread is not compatable with UK threads

I installed it inside a Mansfield toilet to replace its float fill-valve that was getting stuck. It got in easy, it did the job, the toilet appears to be shutting off now and is not leaking. The hardest part was getting the old fill valve out. The old fill valve managed to last ~20-25 years. I don't think this thing will last quite as long: it is more complex with more moving parts. I don't find it noisier than the one it replaced, but it is noticeably slower. Not a big deal for me, and in any case I am not getting it out of there until it breaks. Which is hopefully never.

Could not get the water level for toilet to work. It will not adjust at all. Everything else works well and very easy to install. Instructions are clear.

it took me less then 10 minutes to install no need heavy tools and no leaks, i have problem with my hands , i was able to fit it very well by hands, very happy,