Fluidmaster K-400H-039 Toilet Fill Valve & 2-Inch Flapper Repair Kit

Easy to install and worked great for fixing my running toilet. The fill valve adjusts easily, and the flapper has a good seal. Everything needed was included, and the toilet is working much better now. Good quality for the price.

Well, I'm totally impressed & can't believe how easy it was to install! So our ancient floatie finally just quit on us the other day! Figured I was in for a part that would cost an arm & a leg! I mean it's plumbing you know! Well to my very pleasant surprise not only did we update our toilet, but it was less than $20! Sure I read reviews, researched and this is what hubby said this would fix it! So not only did I receive it in super fast delivery time, (practically next day)it actually WORKS! ONLY took around 15 mins to install and no flooding either lol! Directions were awesome and we are still getting used to how QUIET it is! I've flushed twice thinking I forgot nope I didn't hear it! We are very pleased with this update and realize how important everyone's experience is for others! Very easy to adjust, didn't take much it was almost perfect! The reasons I purchased this one, great reviews, sold ALOT OF them in past month, reputable brand! Easy peazy decision! Definitely worth every penny! Hope this helps someone to purchase this! It's amazing! Very highly recommended!

Worked like a champ. Easy to install and dial in without a youtube video even lol. Saw another reviewer mentioning the flapper didn’t fit because he bought a 3” and needed a 2” but didn’t know where to measure. Well, logic would dictate it being the hole it’s plugging, right? Perhaps? Just maybe? Just lift the flapper, eyeball the opening it was plugging. If it’s the size of an Oreo, you got a 2”. A baseball, you got a 3”. If your toilet was made after 2000, it could be a 3”. But before 2000, more than likely a 2”. If you’re uncertain, they make versions of this item without the flapper and you can purchase that part separately or as needed. As for measuring it? Use the ruler app on your phone to estimate without sticking a tape measure in your refill container. (Wink). That said, the flush is much stronger now, there were no leaking after install. The build quality seems fine, and these are inexpensive enough to not expect decades of use. My only complaint is the plastic or rubber tube to connect the water was a bit shorter than my previous one and interfered with the flush lever, so I had to use my previous one which was fine. I mentioned that specifically because some users described having to cut the included tube to make it shorter. In my case the reverse was true and mine was too short. Pause. All in all, a simple, inexpensive fix and I think I’ll replace the others in my house as well so they can race to see which lasts longest. Lol. 10/10 would recommend.

This was the second one I installed. The first was much easier to install. This one was more difficult because of tighter access. Overall works fine. The stopper floats and would not come down until I added a small weight on top to ensure it drops when intended.

Easy install, works well, I would buy this toilet fill valve again.

I recently upgraded to the Fluidmaster K-400H-039 High Performance Toilet Fill Valve, and I couldn't be more pleased with its performance! This product has made a noticeable difference in the efficiency and functionality of my toilet. Installation was a breeze! The instructions were clear, and I had it set up in under 30 minutes without any need for professional help. The adjustable height feature is fantastic, allowing it to fit perfectly in my toilet tank without any hassle. What I love most about this fill valve is its quiet operation. Unlike some other models I've used in the past, this one fills the tank quickly and efficiently without the loud noises that can be disruptive. It's a significant improvement in my bathroom environment. Additionally, the valve has a powerful flush, ensuring that my toilet is filled effectively after each use. The anti-siphon feature adds an extra layer of security, preventing any backflow and ensuring clean water supply. The quality of the materials used is evident; it feels sturdy and durable, promising longevity. I've had it installed for a few weeks now, and everything is still functioning perfectly without any leaks or issues. Overall, I highly recommend the Fluidmaster K-400H-039 High Performance Toilet Fill Valve to anyone looking to upgrade their toilet's performance. It's efficient, quiet, and easy to install, making it a fantastic choice for any homeowner. This product has truly transformed my toilet experience!

Whoever wrote the instruction manual should get a raise. It's color and full of pictures with clear step by step instructions. Took maybe 15 minutes to install - works like a charm.

It was my first time replacing a toilet valve, and thankfully the equipment and instructions made it straightforward for me. My apartment has an insanely small toilet (which managed to keep getting horrifically clogged with the mildest (ab?)use), and it was helpful with this installation to be able to adjust things like the amount of time the flapper stayed open to keep flushing, the tank fill height, and so forth. The noise level seems fine, the pieces had all fit perfectly despite the uniqueness of my toilet in size and shape (which makes most plungers worthless on it), and the quality of the pieces seems quite alright. I think the next modifications I make to the toilet (I may replace the gasket between tank and bowl) will come from this same brand, and I'm glad I had this decent of an experience learning to deal with toilet component replacements.

Quick and easy to install. Got all the parts needed and more for a simple repair.

Muy buen producto, fácil de instalar, y muy silencioso trabajando. Todo está en el paquete para hacer una buena instalación. Material impecable.

Muito bom

Muy bueno

I’m a mature lady and I installed this myself 😃 Only needed the one part. Still working on the water level adjustment. I had already replaced the handle chain and flap but this pak comes with everything for a full in-tank replacement pieces. Make sure to have pliers and I used thick bathmat underneath. water is still in the dips and hose after bailing out the tank…which is necessary. Considering the cost of having the plumber come to do it…happy to have a smart friend give tips on this installation thru text as well. Thanks Pete 😊