The Top 5 Best Dual Flush Toilets Of The Year

Last Updated on October 19, 2020 by Terry Ohara

Throughout the years, dual flush toilets have gained significant popularity because they are considered as the first choice for thousands of customers on the market. One of the main reasons is the fact that they offer the user two different water levels to choose from with the intention to minimize the water expenditure as much as possible, and in some case studies, this means that the water usage is reduced for more than half.

This relatively new technology is exclusive in comparison with the older models which often use the typical pull/push functioning pattern are known for clogging unquestionably more than the dual flush toilets and the result of “misflush” isn’t new with the older models.

Dual flush toilets do not only minimize the water expenditure but, they have also proven themselves as a truly reliable option in terms of avoiding misflush and preventing clogging.

However, choosing the right dual flush toilet can be problematic at times, because there are hundreds of them available on the market, and each of them differs mainly in price and durability even though the mechanism is the same. Check out our buying guide about the best toilets to see all different types.

In this article, I will review the best dual flush toilets to save you from the need of exploring everything by yourself and doing your own research. Each product mentioned in this article has been analyzed to the very last detail, so let’s get started and see what I have prepared for you!

The 5 Best Dual Flush Toilets

5. American Standard H2Option Siphonic

Our Ratings:



We are going to start our best dual flush toilets list with a very reliable option. The American Standard H2Option Siphonic is currently among the most highly-rated dual flush toilets on Amazon as well as on the market as a whole, and you’ve likely seen this name multiple times while you were searching for on the Internet which definitely has to mean something. My job is to reveal it for you right now, so let’s see what can you expect from it!

From a design perspective, this model sports a sleek, all-white construction that measures 29.8 x 15 x 29.5-inches, weighs approximately 91 pounds, and if we take a closer look at these specs, I can easily say that this toilet is appropriate for small, medium and large bathrooms because it doesn’t occupy a chunk of space!

In addition, its form has a quite convenient shape and what’s also cool is that the surface is specifically designed to maintain being clean, so, both in terms of maintenance and hygiene, these two attributes make everything be smooth.

To be more precise, the surface does an unbelievably good job in protecting the toilet itself from various things, including fungus, algae, mold and mildew which by default means that you will have to put a considerably less effort for maintenance on one side, while on the other, this also comes handy especially in preventing the chances of staining.

When it comes to the installation, the American Standard H2Option Siphonic pre-installed bolts and grommets which will save you up to 30% of the time you would require to install this unit properly. However, I’d advise you take a close look at the installation instructions if you prefer to install this toilet by yourself, because if you follow them correctly, you will never face any undesirable situations. On the other side, if you face any difficulties, do not hesitate to hire a professional that can do everything for you.

Before we move to the next section, I would also like to inform you that unfortunately, this unit does not come with a seat which may be seen as a fairly normal thing due to the fact that by doing this the company has managed to keep the toilet price low.

Moreover, the American Standard H2Option Siphonic performs pretty well and if you have ever had a chance to take a look at the reviews, you have likely seen that customers expressed compliments regarding its performance. Namely, the toilet’s dual flush system delivers a water flow output of up to 1.6-gallons per flush( full flush) and has a partial flush of 1-gallon per minute. The manufacturer has also set marks on the buttons, so even if you are new with dual flush systems, you will know the way they operate.

But that’s not all! This toilet includes a very useful feature which is known as the power washing. This feature works closely with the Jet-Powered Siphon. To simplify this, the siphon is instantly activated with the push of the jet and once this process is done, the siphon releases the bowl of the used water. By doing this, the flush becomes powerful and smooth at the same time which by default means that your toilet will be extremely clean.

Last but not least, the American Standard H2Option Siphonic meets the EPA WaterSense Criteria, and this is surely a reliable proof that says a lot about this toilet. Being a WaterSense-certified product means that a specific unit is designed to preserve water expenditure on one side, while on the other, that product can be tested by third-party. Well, this toilet meets the criteria so without a doubt I can say that the manufacturer has done a really good job here!

To summarize everything, the American Standard H2Option Siphonic is an affordable dual flush toilet that does not look or perform in such a way, and if you ever decide to purchase it, you will unlikely regret that decision!

4. WoodBridge T-00010

Our Ratings:



The Woodbridge T-00010 expands the borders of what you’ve previously thinking regarding a product that offers value for its cost. In fact, this dual flush toilet merges a durable construction and exceptionally good performance for a price that is affordable for a variety of different users. If you’ve been looking for something similar, then let’s take a closer look at the benefits you get along with the package!

Aesthetically speaking, the Woodbridge T-00010 comes in a single, all-white color finish and in 4 different editions, including the edition in which you only get this toilet, the Elongated Bidet Seat with Air Dryer, the Integrated Bidet and Toilet, and the Toilet and Bidet, so feel free to switch if you prefer more features.

This particular model boasts an attractive, all-white colored body which is accompanied by a rectangular button that sits on the top, a skirted trap way which is surely a great addition due to the fact that you can easily clean the toilet base, and a soft closing seat that employs a seat hinge made of a durable stainless steel, so when you see this unit as a whole, personally, I find it visually pleasing!

When it comes to the dimensions, the T-00010  measures 28.5 x 14 .5 x 27.5-inches and weighs around 119 pounds which makes it be compact enough to fit in a variety of different sized bathrooms and beautiful enough to completely blend with virtually any bathroom decor.

Moving on, the installation process is very smooth and the reason behind is the fact that this model has a one-piece design. To be more precise, the package includes a hand wrench tool of which you can take advantage in order to tighten bolts, wax ring, floor bolts, and a pre-installed toilet seat so, within a very short period of time you can do everything by yourself. The manufacturer has also included a well-written user manual, so feel free to check it out in order to avoid hiring plumbers. However, some users have reported that they had some difficulties reaching the bolts because most of them are situated at the inside, but, this doesn’t mean you will have such “problems” as well.

Now, let’s speak about performance.

First of all, I would like you to know that the WoodBridge T-00010 is WaterSense-labeled, and has two flush buttons of which one uses 1.0-gallons per flush liquid waste, while the other uses 1.6-gallons per flush, so, without a doubt I can say that this model has all the attributes of a water-efficient product.

In addition, this toilet uses a so-called Siphon Flushing Action which I particularly like, mainly because of the fact that the toilet remains silent even though it produces a fully glazed flush!

The siphon flushing prevents clogs and leaks as well, and so far, I don’t have any remarks regarding its design and performance.

Last but not least, users claim that they were satisfied with the comfort that is offered by this toilet, and to be honest, I’m not even surprised considering its overall design that makes it suitable for both, children and adult users.

To conclude, the WoodBridge T-0001 is worthy of considering because of two reasons, the first is because it has received thousands of positive critiques from the users on the market, and the second is due to the fact that this unit justifies its price tag with its performance and offers even a greater value for its cost!


3. Woodbridge T-0019 

Our Ratings:



The WOODBRIDGE T-0019 is a fairly new product, that has been recently released by the Woodbridge, but since its release date, it has quickly established itself as an exceptionally reliable option for everyone who wants is looking for a quality dual flush toilet without spending a fortune!

In terms of the design, the T-0019 has a modern, fully white-colored, elongated-shaped body that measures 31 x 18 x 28-inches and weighs approximately 152 pounds. These dimensions make this toilet be highly suitable for different kind of bathrooms regardless of their size, and if you ask me, this is great because numerous users may have the opportunity of getting this toilet for their bathrooms.

On the top, this unit looks similarly like the one we’ve listed previously,because you can also notice the presence of the rectangle button, while slightly below, you can immediately notice the eye-catching, soft-closing seat that is followed by a stainless steel hinge which will ensure that the closing seat will unlikely loosen after a repeated use like it is the case with most of the toilets on the market.

If you’ve been asking yourself about the installation, well, I have good news for you. The T-0019 comes with a pre-installed closing toilet seat, a wax ring, floor bolts, pre-installed water fitting, a hand wrench tool and a detailed, installation instruction which is easy to follow, so, with simple technical knowledge, you can manage to install everything by yourself instead of hiring plumbers. However, some users claim that they have experienced difficulties during the installation process, due to the fact that the holes that should keep the floor bolts are somewhat hidden from the view. Regardless, the chances that you can do it by yourself are indeed high, but of course, if you have difficulties, do not hesitate to consult a person that knows more about installing toilets or simply hire a plumber.

Moving on, as was the case with the previous model, this one utilizes a Siphon flushing as well. The main benefit you get is that you will unlikely face problems regarding leaks and clogs, but instead, the fully glazed flush will remain quiet so it won’t disturb you when you’re close to the toilet.

In addition, the T-0019 lets you choose between the 1.0-gallon per flush and the 1.6-gallon per flush mode, but what’s interesting is that this toilet maintains water expenditure at the lowest levels, so your water bills will never be highly affected. As a matter of fact, this toilet is WaterSense-labeled so you already know what I’m talking about. According to the manufacturer’s estimation, you will preserve up to 16500 gallons of water when you compare this  dual flush toilet with a typical 3.5-gallon per flush model.

When it comes to the cleaning, users claim that especially liked the skirted trap way feature which allows you to have a smooth cleaning, and when we add the fact that the T-0019  lacks corners, it means that any time you enter your bathroom, the area will look extremely clean, exactly like it should!

Overall, I strongly recommend you consider the WOODBRIDGE T-0019, especially if you’re looking for a durable dual flush toilet that is quality enough to compete with some of the salty-priced toilets on the market!

2. Kohler K-5401-0

Our Ratings:



The KOHLER K-5401-0 is not the most affordable dual flush toilet you find on the market, but to be honest, its price tag is completely justified by this unit. Starting from its glorious design and all the way up to the performance, the K-5401-0 is simply flawless! Intrigued? Let’s get started right away and explain everything in details so that you would have a better understanding of the benefits you receive in a return with this toilet!

Design-wise, the K-5401-0 is fantastic. I love it! It looks like it comes from the future, with one word, a typical example of how should one dual flush toilet of this price range should look like!

For your information, this unit measures 26.38 x 17.26 x 21.38 inches, weighs around 110 pounds and boasts a luxurious, all-whiten ergonomic body that is followed by sleek, yet balanced curves which add even more beauty to its already beautiful appearance!

In the following sections, I will provide you with more information regarding each part of its unit and how do they function, so keep reading because now, I’m gonna deliver you some information regarding the installation.

The K-5401-0 includes multiple useful components that will drastically ease your installation process, and this consists of a braided inlet supply hose, power cord,  installation instruction manual, an LCD  remote control,  supply stop valve along with the complete toilet and seat, so from the very beginning you already know that this unit comes equipped with everything!

However, I’d advise you to take advantage of a professional because by doing this, you will minimize the chances of undesirable scenarios, but, if you have knowledge then this is not mandatory. Regardless, just keep it simple and play it safe.

Moving on, KOHLER K-5401-0 performs extremely well, so let’s briefly explain each of its abilities.

First of all, the dual flush modes include a 0.8 and 1.28-gallons per flush and employs numerous features such as the self-cleaning feature which uses UV light that distributes reliable sterilization. In terms of hygiene, I think that you can’t be more satisfied than having a toilet with such capabilities, right?

Moreover,  the K-5401-0 employs a warm air dryer function and a heated seat option that can be tailored exactly by you thanks to the adjustable temperature settings, and without hesitation, I can say that the manufacturer has done a pretty good job here!

But that’s not all! I can’t see the end of the convenience you will face if you ever purchase this product. Namely,  around the bowl, there is even an LED illumination which will serve you as a night-light on one side, while on the other, it will surely improve your user experience since there aren’t thousands of toilets that have LED lighting!

Furthermore, the seat is motion-activated, hence, you won’t even have to use your hands in order to open or to close the lid, this is super useful because of multiple reasons, but the main is the hygiene! Since I’ve mentioned the lid, I’d also like to inform you that the lid closes slowly and does not produce a loud noise like is the case with the standard toilets, so, if you ever require going to bathroom at the night, you will not disturb you and those who live with you with the noise.

There is one more thing that I would like to speak about, and that’s regarding the customers. Well, those who have already purchased this dual flush toilet claim that the seat is extremely comfortable, and I’m sure that you will feel the same.

To summarize, if you’re looking for a feature-full dual flush toilet that is well-made and feels extremely comfortable, then the K-5401-0 would be an ideal option for you. Definitely one of the best dual flush toilets that you can buy right now.

1. Toto Neorest 700H

Our Ratings:



I didn’t think twice before I managed to list the Toto Neorest 700H as the best dual flush toilet on the market, due to the fact that this unit covers basically everything and has all the attributes which in my opinion a dual flush toilet should have. Design, comfort, performance. All of these three attributes comprise the Neorest 700H! Intrigued? Let’s see the advantages of having it in your bathroom!

When it comes to the design, the Toto Neorest 700H looks modern and since its fully covered in white, it means that regardless of your bathroom decor, this toilet will suit each bathroom perfectly fine!

In addition, its dimension makes this unit be a real space saver, since if we take into consideration that its dimensions measure only 32.5 x 15.5 x 21.5-inches, by default, it means that the Neorest 700H is compact enough to fit in a small, medium and large bathroom without any problem!

Thanks to its well-made design, this unit is appropriate for young children, adults and even people with disabilities which require special self-care treatment, and I have to express my gratitude towards the manufacturer! They have really cared literally about everyone!

For your information, the package is unlike the conventional toilets, so it requires being a professional in order to install it properly. For instance, If you have never installed a toilet before, then I’d strongly recommend you hire a plumber that has experience with such high-end toilets. Some of the users that we were in contact with the claim that they couldn’t do it on their own, but this is fairly normal due to the fact that not every one of us is an expert in every field, including the process of installing a toilet.

Moving on, the Neorest 700H incorporates many interesting features, so, let’s briefly explain each of them.

Firstly, since we are talking about a dual flush toilet, it means that you will have an option to choose between the two flushing modes such as the 1.0-gallons per flush and the 9.8-gallons per flush. What’s interesting is that this model is WaterSense-certified, and this says a lot especially when it comes to water-efficiency.

Furthermore, this unit utilizes a built-in automatic feature that opens and closes the lid, so from now on, you won’t deal with slamming on one as well as you won’t have to worry whether you or your loved have left the lid up.

Since I’ve mentioned the lid, there is yet another interesting thing. Once you open the lid, you can immediately notice the nightlight, and if you ask me, this is a really convenient feature, especially when you require going to the bathroom during the night.

But, the manufacturer did not stop here! This toilet integrated a temperature control on the seat, a self-cleaning wand, an air dryer and even an air deodorizer which will drastically improve the hygiene of your bathroom, and I have to admit that Toto does really deserve our compliments here!

Moreover, keep in mind that this toilet is tank-less, which means that it uses electricity to power everything and the flush part isn’t different at all. So, if your bathroom faces a power failure this could make this unit unable to flush. This shouldn’t sound like a disadvantage, because the Toto has already backed you up with the needed information in case of an emergency flush. All you would have to do would be to follow the instructions that are written in the manual!

To conclude, the Toto Neorest 700H is indeed a masterpiece that should be considered as a must-have dual flush toilet for every household who is not tight on budget but would like to invest in a premium looking and performing toilet!

How Dual Flush Toilets Work

One of the best dual flush toilets that we recommendFirst of all, let’s make a comparison between the standard and the dual flush toilets in order to have a better understanding of their performance. Standard toilets use a so-called “Siphoning” method which consists of a siphoning tube whose purpose is to evacuate waste. This method performs in such a way that when air enters the tube, the siphoning action stops.

On the other side, dual flush toilets employ a larger diameter trap way which has proven itself as a far more reliable and better option when compared with standard flush toilets mainly because of their ability to prevent clogging, a common thing that often happens with standard flush toilets.

Contrary to upflush and portable toilets, dual flush toilets are a bit more expensive. Not only because of the fact that they clog as often as the conventional toilets, but also because they save more water and are far more efficient.

Types of Toilet Flushing Systems

The most common types of toilet flushing systems are:

  • Dual Flush: These systems have gained popularity throughout the years and can be named as one of the most effective if not the most effective flushing units. Dual flushing systems use less water without sacrificing performance.
  • Double Cyclone: Currently, they are a new technology from Toto toilets but what’s interesting is that they have also become popular throughout the years mainly because of the ability to use approximately 1.28 gallons of water per flush.
  • Gravity Flush: Gravity flush systems as the name suggest, are using the water to make a flushing pressure which basically forces everything from the tank and bowl to be released through the trap way.
  • Pressure Assisted: These toilets are a bit nosier than the other 3 systems, but what’s good is that they will less likely clog due to the fact that they are powerful. In practice, they are using pressurized air with the intention to let the water into the bowl and eliminate the waste.

Advantages Of Having A Dual Flush Toilet

  • Cost-Efficient: Dual flush toilets require less water usage and therefore, its performance will not affect the cost of your monthly water bills.
  • Water Savings: According to United States Environmental Protection Agency (EPA), if each conventional toilet in the U.S is replaced with a new, high-efficient model, this could save up to 2 billion of water every day. So, having a dual-flush toilet does really save water and it is a good practice since every one of us should care about the environment.
  • Less Maintenance: Dual flush toilets offer a better, clog-free operation if you compare them with the standard toilets, and what’s even better is that you will unlikely have to hire plumbers to fix some defects for you.

Frequently Asked Questions (FAQ)

How much do dual flush toilets cost?

In general, they cost a bit more when compared with the standard toilets. However, there isn’t a precise answer to this question due to the fact that the price depends on the brand, design and other factors.

How should I clean my dual flush toilet?

Dual flush toilets do not really differ from the standard toilets in terms of cleaning. It is advisable that you avoid using chlorine or bleach tablets especially in the tank of your toilet. Instead, try using non-abrasive detergent and a toilet brush.

Do dual flush toilets come with toilet seats?

Well, it depends on the brand. Some brands include a toilet seat along with their dual flush toilet, some do not.

Are dual flush toilets easy to install?

Most toilets, regardless of their type are easy to install and dual flush toilets aren’t different at all. However, I’d suggest you hire a professional plumber because if you do not install your toilet correctly, this may lead to some problems.

What’s the best dual flush toilet on the market?

 There is a wide variety of different dual flush toilet, and although each of them performs mostly the same, there are some types that cost more than the others, as a result of numerous factors. Hence, I can’t give a 100% correct answer to this question, but, the closest would be the dual flush toilets that are listed in this article.