The 5 Best Dual Flush Toilets of 2019 – Top Models [Reviewed]

By Toilet Reviewer Team | Updated: May 15, 2019 | 0 Comments

Just having a conventional toilet with a few basic features is not enough anymore for many people.

Aside from being comfortable, a toilet should be water efficient, durable, and packed with some extra features as well. This is where dual flush toilets come in.

While the mechanism for dual-flush toilets was invented all the way back in the 1980’s, they didn’t get popular until the mid 90’s. They’ve been used in many homes for the last 30 years due to water shortages in many parts of the world. Also, because of their water-saving feature and their efficiency.

As their name suggests, dual flush toilets have two functions: for liquid waste and for solid waste. Such a system can save up to 60% of water, which is considerable water conservation indeed.

During our research, we’ve evaluated, compared, and tested a number of toilet models. All of this is aimed at narrowing down your choices so that you can easily choose the best dual flush toilet for your bathroom.

5 Best Dual Flush Toilets 2019

1. American Standard H2Option – Best Overall

As one of the most effective toilets right now on the market, American Standard is widely used all around the globe. It is certified by WaterSense and many people regard it as the best dual flush toilet.

The H2Option toilet uses siphonic action technology to eliminate more bulk and cut down the water consumption.

In fact, it uses 1.6 gallons (about 6 liters) per flush in case of solid waste and one gallon per flush when it comes to light waste.

The toilet boasts a pressurized rim with rim holes that are specially configured to help in scoring and cleaning of the toilet.

Additionally, it makes use of a mirror-like antimicrobial surface that prevents the formation of mildew and bacteria. This ensures that the toilet looks clean for long periods of time.

Pros
  • Great dual flush option
  • Perfect for small bathrooms
  • Noiseless, quiet flush
  • Easy to set up
  • Sturdy and durable
Cons
  • The stool may stick on the wall sometimes
  • Not so comfortable

2. KOHLER K-3987-0 Wellworth Dual-Flush Toilet – Best for Preventing Clogs

If you have a bathroom with limited space, this toilet is right for you. Thanks to a rounded front bowl, it takes up less floor space compared to the elongated counterparts, and that’s not at the cost of efficiency.

KOHLER Wellworth is designed as a traditional 2-piece toilet with the lever on the left side.

The toilet comes with the Class Five system which can remove quite a lot of waste in a single flush while providing the low water consumption.

There are two choices of using: 1.6 and 1.1 gal per flush for solid and light waste. This can help in saving around 25% of water for each flush.

However, the best aspect of this toilet is that you won’t use the plunger anymore. Its glazed trapway and high flush power ensure that the waste is perfectly cleared.

Pros
  • Suitable for smaller bathrooms
  • Clog-free for years
  • Easy to install
  • A flat top can be utilized for more storage
  • Meets EPA flushing guidelines
Cons
  • Not as comfortable because of the height
  • Noisy flushing

3. WOODBRIDGE T-0019 Dual Flush Elongated Toilet – Most Comfortable

Contemporary look and sleek, modern design make the WOODBRIDGE one of the most popular toilets. It looks great in just about any bathroom.

As for the performance, the flexible dual-flush mechanism is extremely water efficient.

The siphon flushing system provides a powerful flush with minimum noise. Depending on whether you’re depositing waste or liquid, you will spend 1 or 1.6 gallons of water per flush.

This gives 1.28 gallons on average, meaning you will save roughly 16,500 gallons yearly.

The toilet features an elongated seat and stands at height of 18″ from the seat top to the floor. This ensures that anyone can use it comfortably.

Pros
  • Fits into tight spaces
  • Elongated bowl for enhanced comfort
  • Fully glazed flush
  • Long lasting
  • Elegant design
Cons
  • Not perfectly flat on the bottom
  • A little tricky to install

4. Saniflo SANICOMPACT One piece Toilet – Best Flushing Power

What sets this model apart from standard toilets is that it employs a pump and macerating to remove waste instead of flushing directly in the plumbing system.

The pump is capable of pumping up to 100 feet horizontally and 9 feet vertically through a 1-inch pipe. The grinder and pump are discretely concealed under the toilet base.

Once you press the flush button, the toilet will fill itself with a certain amount of water. The sink drains in the pump so that the pump immediately kicks in when you’re running the water. That’s a great option when you don’t want to drain a sink.

Another big plus of this dual flush toilet is that a sink waste pipe can be connected to the toilet. This allows you to build a half bath or powder room in a place where the standard toilets are impractical for some reason.

Pros
  • A connection of a sink is possible
  • Installation is straightforward
  • Suitable for small bathroom areas
  • Compact design
  • Stylish toilet seat
Cons
  • The flaw in plastic mold can cause sewage leak
  • Lack of quality control

5. TOTO Aquia Dual Flush Elongated Two-Piece Toilet – Most Modern Looking

The TOTO Aquia features a two-piece wall hung design which enables you to customize the toilet height according to your needs. Combined with the elongated bowl, this results in good sitting experience and maximum comfort.

The solid waste is effectively removed by virtue of a dual-max flushing mechanism. There are 2 chrome buttons on the top of the tank that lets you trigger a flush for either solid or light waste.

A streamlined look of this toilet fits with any bathroom. Moreover, the vitreous china gives it a sleek, modern look. One thing should be kept in mind if you want to go for this toilet. You will need to buy the toilet seat, in-wall tank, and flush plate separately.

Pros
  • Low water consumption
  • Adjustable height
  • Saves space
  • Priced competitively
Cons
  • The tank inside the wall makes maintenance a bit tricky
  • It may require more than one flush sometimes

Things You Must Know Before Buying a Dual Flush Toilet

Pre-purchase considerations are highly important and helpful because they can prevent buyer’s remorse.

With that being said, take a minute of your time to read through the information below before going shopping. That will minimize the chances of sending a toilet back to the shop.

What are Double Flush Toilets?

First things first, let’s check out the dual flush mechanism to get a better understanding of how these toilets work.

Instead of the siphonic mechanism in standard models, dual flush toilets involve a so-called wash down mechanism. It turns out that this mechanism effectively prevents blockages from occurring.

These toilets are fitted with two buttons on the top of the tank by which the amount of water can be controlled more efficiently.

One button is intended for liquid waste (the half flush mechanism) whereas the other button is for solid waste (the full flush mechanism).

Such a toilet uses 50 percent or less water during a partial flash compared to water consumption during a full flush.

Actually, the idea behind these toilets is to allow people to deal with solid and liquid waste differently. That makes them more environmentally and economically friendly.

Why Choose Them?

There are some distinct advantages of dual flush toilets you do not want to miss.

1) Save Water

As you can see, dual flush toilets are big savers in regard to sanitary water. Most of them amount to an average of 1.28 gallons per flush (GPF), but there are also models that go below 1 GPF.

2) Save Money

Assuming that you flush 4000 times a year, a standard toilet that churns four gallons per flush is going to give you around 16,000 gallons wasted.

A 1.6 GPF toilet, on the other hand, will flush about 5,120 gallons of water yearly. That makes a big difference! Less water usage eventually results in reduced water bills and makes your wallet much happier.

3) Save the Environment

Last but not least, these toilets are eco-friendly. By installing a dual flush toilet in your bathroom, you will save on a vital natural resource – water.

Type & Configuration

There are two main options when it comes to Most toilet configuration: 1-piece and 2-piece. The 2-piece toilets are more traditional and this design is the less expensive option. The tank and bowl are separate, meaning they should be joined together.

More and more people prefer one-piece design these days. That’s because there’s no seam between the tank and bowl, which makes cleaning much easier. In addition, they don’t have to be put together and assembled.

Bowl Shape and Height

Toilets come in different sizes and shapes. Some are more compact, others are taller, while several brands are focused on user comfort.

With regard to bowl shape, there are two options to choose from – elongated and round. Elongated bowls are oval in shape while round models are circular shaped.

In most cases, elongated toilet bowls are 2 inches longer than circular bowls. That said, elongated bowls are usually 18 or 19 inches long, whereas round bowls are 16-17 inches long.

Round toilets feature a compact design and they require less space. That makes them more suitable for smaller bathrooms. On the other hand, elongated toilets appear to be more comfortable because of the extra inches.

Water Consumption

Water conservation is important for both your wallet and environment. Many toilets are designed with that in mind and most of them are WaterSense labeled.

The average water consumption of dual flush toilets ranges from 0.8 to 1.28 GPF. It depends on the usage of the lighter and heavier flush.

Mount Type

If you are looking for a dual flush toilet, you can see a wide variety of floor mounted options nowadays. To figure out which one is best for you, you need to understand the specific access requirements of your bathroom.

It should be noted that the flushing systems aren’t just limited to the floor mount. There are also wall-hung toilets that perform so well in many bathrooms.

Style & Design

Dual flush toilets come in a variety of styles and materials.

While most customers still choose the traditional white porcelain designs, there is an increasing number of toilets with a sleek modern look.

Some of them come in different exotic colors like peach and glacier blue.

Aside from the cheap plastic, toilet seats can be made of polypropylene, vinyl, and real wood. They usually do not come with toilets and are purchased separately.

There are also soft close or slam free toilet seats these days. Some high-end modern seats come with extra features like the warm water stream, surface heaters, deodorizing and drying functions. Bear in mind that all those bells and whistles add to the cost.

Our Final Words

When talking about the advantages of dual flush toilets, we always emphasize benefits such as water saving, efficiency, durability, comfort, and so on.

The major drawback of these toilets is their hefty price tag. Generally speaking, they are more expensive than their old-fashioned and regular counterparts. But remember that they are more economical in the long run.

The comprehensive reviews we have provided comprise the top-notch toilet options that every home needs.

We hope it gave you a clear idea of the best dual flush toilet for your own home. In addition to saving water and money, it should satisfy your needs, too. Just as with other products, it mostly depends on personal taste.

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Toilet Reviewer Team

Author: Toilet Reviewer Team

Our team is compromised of industry professionals and home improvement experts. We love reviewing home related gadgets and making sure the guides we publish are accurate.

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