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Best Dual Flush Toilet Reviews | Top 9 Dual Flush Toilet (Guide 2018)

In our modern life, there must be so many houses out there that the owners have installed any old toilet, which is either unattractive, water waste or breaks often. Just think about the advantages that a new and efficient toilet can offer. According to EPA (United States Environmental Protection Agency), you can save about $130 and 13,000 gallons of water every year by merely changing your toilet. But which one to choose instead? You might want to go for the best  toilet you can get your hands on.

The heavy competition in the bathroom industry can make things difficult when picking out a water closet that is good for you and your whole family. The following article will widen you knowledge about the best dual flush toilet and also help you to choose the best one that suitable for your own bathroom. Let’s take a closer look!

What is a Dual Flush Toilet?

American industrial designer Victor Papanek was proposed the system in his 1976 book Design for the real world. Beside that, the first practical implementation was designed by staff at the Australian sanitary-ware company Caroma in 1980. Although the first generation caught on, a redesign of dual-flush toilet in 1993 cut water usage in half compared with traditional toilets, when used properly. The dual-flush toilet has been widely used in Australia, New Zealand, Singapore and Israel (often mandated by legislation in those countries). However, due to the more complex mechanism, it is more expensive than many other types of low-flush toilets.

A dual-flush toilet is a variation of the flush toilet that uses two buttons or handles to flush different amounts of water. This style of toilet is one of the most popular items among people who are trying to reduce water usage. Think about how many times you go to the bathroom in a day, especially if you’re drinking as much water as you should. Each time you make a bathroom trip just to pee, you’re wasting water if you use the same flush as when you’re taking #2 trip. So, these thrones give you two options to choose from, so you can decide how much water you actually need when you are using it.

Usually they feature two buttons on the top of the tank, one for liquid waste and one for solid. The first button releases a reduced volume of water for liquids, and the second releases a larger volume to flush solids, which is more like a conventional fixture. You are conserving water without actually compromising on sanitation or convenience!

3 Benefits of a Dual Flush

  1. Have a positive impact on the environment, due to saving water water consumption thanks to dual flushing system.
  2. Lowers water bills, saving money.
  3. Requires less maintenance.

Dual flush toilets save nearly 68 percent of water in a light flush mode, moreover, some of them go beyond and offer more great features than some conventional toilets do. So before you make your decision, you should consider your needs and decide on the size and design, price range, as well as all those additional features. Luckily, we’ve already made things easier. During our research, we compared, tested and evaluated numerous toilet models and specifications. We even go through all the available feedbacks to help you narrow down your search for the best one.

However, you need to be very careful while choosing the dual flush toilet for you own bathroom. Installing a lower quality one might require you to flush twice and sometimes even thrice. This defeats the entire purpose of installing a toilet that reduces your environmental footprint.

Top 9 Best Dual Flush Toilets – (Reviews & Guide 2018)

In this article, we have built up a list with the most comprehensive reviews of best dual flush toilets nowadays in the market. This type of toilets are becoming increasingly popular for their ability to save water on most flush. This not only lower the amount of water used, saving resources but it also lowers water bills. The EPA has a certification scheme for toilets that use less than 80% of the federally regulated 1.6 gallons per flush but, at the same time have the capacity to clear a specified volume of solid waste on every flush. This test is carried out using miso paste to have a constant test load.

#1.KOHLER K-3987-RA-0 Wellworth Round-Front Dual-Flush Toilet with Class (Best for Avoiding Clogs)

This is a well worth dual-flush toilet with a round front bowl, is compact and small enough to fit into most bathrooms. Although it does not have comfort height, it is still pretty comfortable. You can also utilize the space at the top of the tank for more storage. The best aspect, however, is that you will not have to use the plunger even once. It is high flush power and glazed trapway ensure that, through a quiet, quick and efficient flush, the waste is cleared for good. Moreover, it combines water savings with powerful flush performance. An innovative two-tone flush lever offers the choice of 1.1 or 1.6 gallons per flush, the dual-flush lever is located on the side of the tank like a traditional toilet, leaving the top free for storage. The high-efficiency 1.1 gallon flush reduces water use by more than 30 percent over the 1.6-gallon mode, which adds up to potential water savings of more than 4,000 gallons/toilet per year.

The Wellworth seems like an excellent toilet for the price—slightly more expensive than the American Standard, but less expensive than the Toto (at the time of this writing). It is another great option and nearly every users seems very pleased with the product. The two-part lever is an excellent design choice, and for many people, this may be the selling point - particularly individuals who suffer from arthritis in their hands. Furthermore, there is no significant mechanical problems with this toilet, and the build is sturdy and reliable. Its height, however, may prove problematic for tall or elderly users.

#2. TOTO CT418F#01 Aquia Wall-Hung Dual-Flush Toilet Bowl, Cotton White

Beautiful and functional – this model is one of the best dual-flush toilets that money can buy. Toto Aquia comes in a variety of colors to choose from so that you can find the perfect one to match your bathroom’s interior. It has a dual flushing system. As a home owner, you can take advantage of the 1.6 GPF/6.0 LPF and the 0.9 GPF/3.4LPF. This system enables you to utilize less water when in need to clear the bowl. It comes with an optional CEFiONtect ceramic glaze. This not only avoids debris from sticking to the sides but it also prevents mold from sticking to the ceramic surface. This has been found to result in the use of less chemicals and water when it comes to cleaning. Moreover, it gives the toilet a shiny look all the times. To make sure the tankless toilet is suitable for adults and young children, it comes in a universal height. As a wall hung toilet, it can be paired with TOTO in-wall tank system plus other brands. This enables you to take the advantage of water when the pressure is too low or it is temporarily not available at a moment.

This is highly advantageous as less water can be used after a short or long use because it comes with the dual flush system. It is built with vitreous China - a tough material designed to withstand different forces. Furthermore, it is durable. One year limited warranty takes effect on the day of retail purchase. The warranty covers defects as a result of workmanship. This ensures your toilet gets to give you long term service. In order to install the toilet, you need the help of a professional. The installation is quite easy and all the professional needs to do is line up the toilet with the wall and screw it in. Beside that, it is CalGreen compliant. This means the toilet has met all standards thus making the toilet to be sustainable and a low consumption model.

As a home owner, it is wise to take advantage of tankless toilets thanks to the advanced features they are engineered with. Looking for a tankless toilet that will save you on monthly water bills? We highly recommend the TOTO CT418F#01 Aquia Wall-Hung Dual-Flush Toilet Bowl.

Tips: The wall mount toilet may not support the weight of every individual. This would result in the toilet being loose at the wall causing it to creak when sat on.

#3.American Standard 2889218.020 H2Option Siphonic Dual Flush Normal - an HET (High-Efficiency Toilet) in accordance with the Water Sense specifications for dual flush toilets

This could be a compact and affordable choice to those working with a medium budget. Not overly expensive but still contains some nice features and made by a reputable brand. It has a full flush of 1.6 gallons per flush and a partial flush of 1 gallon per flush. All the toilets are 100% flush tested at the factory and the whole toilet has a 5 year limited warranty. Due to the round shape and the overall height to the toilet seat (which must be purchased separately), this toilet does not meet ADA specifications. Toilets that do not meet ADA requirements cannot be fitted to new or refurbished restrooms that are used by employees or the general public. Two piece design, meaning the tank and bowl need to be attached to one another. A white color is not particularly unique, but that is a color we highly recommend over many other options out there, simply because it is so versatile at matching different themes.

Furthermore, it has been called the H2Options thanks to the two power levels that are operated via usage of button actuators on top of its tank lid. The lower flow will produce 0.92 gallons, while the stronger will send 1.28 gallons through the bowl. This means both fit WaterSense standards, which can enable people to make savings of around twenty percent compared to federal standard of 1.6. The bowl features something known as EverClean antimicrobial surface coating which stops things such as mold, odors and stains from the toilet by halting the growth of bacteria. Those of you who set high standards of hygiene for the bathroom, will appreciate this. It also has an easy connect feature which reduces its installation time by approximately 30 percent. And because it is easy to set up, you do not need to go through the hassle of hiring a contractor.

#4. TOTO CST412MF.01 Aquia Dual Flush Elongated Two-Piece Toilet

The TOTO Aquia is a close coupled and two piece that is made in vitreous china and finished in a cotton color. Instead of the traditional trip lever you find on most older loos, this one includes a chrome button on top of its tank that are used to trigger either of the two flushes. When combined with the skirted style mentioned previously, it has a contemporary feel to it that I believe many consumers will appreciate.

This dual flushing toilet will gives you two separate power buttons that will send either 1.6 or 0.9 gallons through the valve into the bowl. While the 0.9 option meets WaterSense requirements, the 1.6 does not. The lesser amount is usually used to remove liquid waste, and the larger amount for getting rid of solid waste that requires a little bit more power.

The toilet with a seat (which must be purchased separately) is what TOTO refer to as ‘universal height’. This means that the shape and height of the seat meet the requirements of the ADA specifications, but due to having a flush triggered by buttons rather than a lever, the toilet is not fully compliant. An elongated shape that is skirted and hides the trapway effectively, boosting the overall aesthetics. The smoother surface can also be beneficial in keeping it clean and hygienic as there is less cracks, nooks and cranies for dirt, bacteria and dust to build up inside. It is taller than your standard size too improving accessibility for people who find it hard to sit down.

By spending time to researching products, we have come across several of the best rated TOTO toilets on the market. This might not the most efficient unit out there but in my opinion, the CST412MF.01 model is another one that absolutely deserves to show up our guiding list.

Tips: A slight issue is that chrome push-buttons tend to get stuck every now and then. But this is a common issue with this type of toilets.

#5. TOTO MS992CUMFG#01 Neorest 1.0 GPF and 0.8 GPF 700H Dual Flush

If you are looking for a modern take on a toilet, or whether you just want to have the very best dual flush one in your bathroom, the Neorest will fits your budget. It is universal height and 12” rough-in make it simple to install in any bathroom. It is economical since it only uses 1.0 GPF or 0.8 GPF (gallons per flush) depending on how much water you need. The sleek and small design would fit perfectly in a small bathroom. It goes with a remote, which allows you to raise and lower the seat, turn on a nightlight or turn up the heat to make you feel comfortable.

Packed with all the latest technology, the TOTO Neorest 700H is a perfect mix between luxury and environment-friendly. Even though its water usage is lower compared to the average toilet, it flushes consistently and automatically. It also uses its superior technology such as the "ewater+" that transforms even ordinary tap water into a powerful but safe compound, which has properties similar to those of a household bleach while flushing to keep the toilet bowl clean.

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This electrolyzed water even reverts itself back to normal water after 2 hours, removing the chemicals it added into the environment. Furthermore, the Neorest 700H also has a constructed with Toto’s patented CeFiONtect, which makes cleaning it a cinch and you have a toilet that is simply tough to beat that makes it impossible for even the tiniest of waste to stick on the toilet surface. This item has so many features that it can make you wonder how to use them all. But please do not worry, the owner’s manual has everything covered for you and your DIY project.

#6. WoodBridge Bath T-0019 (Runner-up)

The Woodbridge Dual Flush toilet is one of the most popular dual flush toilets on Amazon. The T-0019, complete with a contemporary look, is modern, sleek and elegant design that will look great in any bathroom. This flexible dual flush mechanism is very water efficient. It has the siphon flushing design, which not only makes for a powerful flush but it also creates minimum noise and so that no waste is left behind. It is attached with an elongated seat and is ADA, or a comfort height toilet. It also includes a soft-close toilet which most consumers really appreciate.

You can choose from a 1.0 or 1.6 gpf depending on if you are depositing liquid or waste, giving an average of 1.28 gpf. Comparing it to the standard 3.5-gallon toilet, the T-0019 can save you up to 16,500 gallons a year. It stands at a height of 18 inches from the top of the seat to the floor, ensuring that many adults can get on and off it without compromising their comfort. This toilet also has a narrow width which can save you some space in your bathroom. Compared to other toilet designs, the T-0019 has a skirted design and lack of nooks and crannies, making it easier to clean.

To aid with the installation, the toilet comes with a special hand wrench which makes the bolts in the corner easier for you to tighten. This all-in-one package includes the toilet, pre-installed toilet seat, wax ring, floor bolts and instructions for installation in your DIY project (Do It Yourself).

#7. Swiss Madison SM-1T254 St. Tropez One Piece Toilet Dual Tornado Flush 0.8/1.28 GPF

With a contemporary bold design, this one-piece toilet features a flushing system using two powerful nozzles (instead of rim holes) that create a centrifugal force for a highly efficient flush. The strong dual flush function is very dependable offering a never-failing performance with high-performance gravity 0.8 / 1.28 gallon per flush (gpf). Seamless porcelain one-piece is one of the best features of this dual flush toilet to help you clean it easy. Elongated comfort height bowl for luxury and convenience. Soft Closing Seat closes gently and quietly will absolutely up to your sastisfaction.

Quick-Release seat can be unlatched from the toilet for easy removal and convenient cleaning, no tools required. Side holes offer easy access to the floor bolts for installation. A universal height means that both adults and children will be comfortable using it, so don’t be surprised if you end up wanting this in multiple bathrooms. Installation is easy so this will probably take the least amount of time to install a unit that has a tank. Although not as popular as some other models, the Swiss Madison SM-1T254 St. Tropez One Piece has a lot of great pros about it.


This type of toilet is quite different to most standard toilets in that it uses macerating and a pump to remove waste, rather than flushing directly into the drainage system. This makes the Sanicompact 48 an ideal solution to fitting a toilet in areas where a standard flush toilet is impractical. It has a waste pipe from a sink can also be hooked up to the toilet making it an ideal solution to building a half bath in places where a standard toilet would be impractical. The pump on the toilet can pump up to 9 feet in height and 100 feet horizontally, all through a 1” pipe. Instead of a conventional flushing system, once the flush button is pressed, the toilet fills itself with a set volume of water, then this, together with the waste is drawn through macerating blades and pumped out through the 1” waste pipe.

The Saniflo Sanicompact does not have a traditional tank which makes it look smaller but it sits like a normal toilet. The pump and grinder are concealed under the base of the toilet and we are very happy with the fit and finish of the product. When you flush there is a sump-pump like sound afterwards (it is an up-flush so it pumps the water up to the discharge line) and it has plenty of power. The sink also drains into the pump so when you run the water the pump kicks in afterwards. This is an option so if you do not need to drain a sink as well this model will still work for you.

On the other hand, there is a little more complex to install than a standard flush toilet. If it is a new installation, rather than a replacement macerating toilet, there is a likelihood that you will need to run a 1” pipe from the toilet to the waste pipe, which can be a little involved depending on the route that the pipe has to follow. That being said, the installation of the toilet, even including the option to use the toilet to get rid of waste water from a sink, is quite straightforward. An electrical outlet is needed nearby to provide power to the pump and macerator. Saniflo installation instructions explain all the steps. The electrical outlet used to power the toilet should be connected to a ground to reduce the risk of electric shock. The manufacturer recommend using a plumbing professional for installation.

#9. CO-Z Siphonic Dual Flush Toilet One-Piece Construction with Elongate Seat & Comfort Height

A stylish and elegant design, the CO-Z Siphonic Dual Flush Toilet is the best model you can get at an affordable price. Its high density glazed coat makes it very easy to clean while also minimizing residues and bacteria proliferation. This glazed coat with its sleek surface also ensures that there is minimum staining on the bowl.

Due to its siphonic technology, a full flush takes less than 5 seconds, making sure that the most water is saved while also reducing the noise as much as possible. And the toilet tank only takes 20 seconds to refill. Because of its 2.8-inch water level, it prevents odor emission by bacteria that cause these odors. The toilet is also small in comparison to others in the market, so the CO-Z Siphonic Dual Flush Toilet can help make your washroom even spacious while not compromising on your comfort as you do your business.


The best dual flush toilets not only save water and money but also satisfy your personal needs. The comprehensive list we’ve shared contains the toilets which we truly believe every household needs. It can be quite a hassle to find the right throne for you, when you have to take into account various sizes, styles, flush systems, bowls, additional features and prices. Whatever features you want your toilet to have, they need to fit your budget. Obviously, the more innovative and feature-rich a toilet is, the more expensive it will become. However, we hope that our guide will be of help to you to make this process easier. Besides the information we’ve provided, we encourage you to look through customer feedback of the toilets as well as the ratings they have provided. At the end, the best toilet for you will depend on your personal taste but we hope we have at least can minimize your search time a little bit.

Now that you have read through our full buyer’s guide and feedback, plus all of the reviews for the excellent washlet we have found, you should be in a good position to choose your next cleaning appliance. Bear in mind all of the things that you need from your own toilet and how to ensure each unit checks these boxes. All of the items that we have reviewed come highly recommended. We hope that we are successful to make you widen your knowledge about your toilet. Last but not least, keep in mind the important things we have mentioned above to make your toilet is the best one. If you have anything to ask or to add, feel free to comment in the section below and we will answer you one by one!

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