7 Best Dual Flush Toilet Reviews

best dual flush toilet reviews

Are you thinking that replacing an old toilet and selecting a fashionable model is time-consuming? It is easier than you may imagine! However, you want to do some studies and discover approximately the top rated dual flush toilets, their operational features, and their durability to select the maximum appropriate version for your place.

Old and traditional toilets need more power to work properly. It would help if you had more water consumption for flushing. New and latest advanced feature-based toilets have dual flush properties that help to use low water for flushing.

Want a toilet that can give you a powerful flush that will get rid of all the waste in one go? The latest and best dual flush toilet can do this efficiently.

In the flushing system, 2 functionalities are added one is for liquid waste, and the other is for solid waste. This way, you can use less water when you are flushing away liquid waste. It is important when it comes to solid waste, you can be sure that it will all be flushed away in one go.

There are different dual flushing systems available, but we have considered things like flush power, water usage, and price. In this way, you will find the best dual-flush toilets.

Best Dual Flush Toilet Reviews

Here is the list of recommended dual flush toilets that you can consider buying.

1. Kohler K-3987 – Best-Rated Two Piece Dual Flush Toilet

This dual flush toilet combines water savings with effective flush performance. A modern two-tone flush lever gives the selection of 1.1 or 1.6 gallons in keeping with a flush; the dual-flush lever is positioned at the aspect of the tank like a conventional toilet, leaving the top free for storage.

The toilet has a long-lasting canister with 90% unexposed seal material, which affords first-class leak-evidence performance. The universal pink seal is more durable with an extended lifestyle than in different models.


  • Power efficiency
  • Water management
  • Soft toilet seat
  • Easy to use


  • It has a round bowl, thus, takes little space;
  • Dual flush technology;
  • Class 5 flushing technique.


  • It may come without a seat (ask the seller before purchasing).


One of the buyers tells about their experience with this toilet. He was very satisfied with the features of this flush. He says that saving money on water usage is a real plus, works beautifully and he has no complaints.

2. Swiss Madison SM-1T254 – Best Dual Flush Toilet for Water Saving

Swiss Madison is a toilet made with the clients in mind. The version is outfitted with a unique but effective tornado-like twin flush that cleans waste, leaving no stains in the bowl.
Moreover, this object comes with a comfortable and easily detachable seat that makes the process of cleansing even greater simple. This toilet has a gravity water strike of about 0.8/1.28 gallons per flush, thus, saving a substantial water quantity.


  • Modern design, clean, sleek look
  • Extremely easy to clean
  • Sleek and eye-appealing modern design
  • Soft closing seat included


  • Dual tornado cleaning flush;
  • Comfortable height;
  • A soft-closing seat.


  • An open-lid flush may soak the bathroom floor;
  • It comes with a one-year warranty only.


A buyer who bought this says that it is a well-made, beautiful, and easy-to-clean toilet. He write that his plumber installed it without issue. This flush looks fantastic in his bathroom and he highly recommends this toilet.

3. Toto CST446CEMG#01 Aquia IV – Dual Flushing Toilet with Skirted Design

Toto Aquia IV is a perfect blend of both comfort and environmental consciousness. It is designed with skirts that cover the tapware, Moreover, the striking look adds the toilet a touch of elegance.

Along with that, it is a 119 lbs. two-piece toilet system measuring 27.7 x 15.6 x 29.6 inches with a Dynamax tornado flush system outfit. The bowl is designed with a CeFIONtect ceramic glaze to prevent molds and stains from building upon its surface.


  • Comfortable and environment friendly
  • Powerful flushing
  • Water conservation
  • Advance cleaning technology


  • EPA WaterSense certified
  • Silent flush
  • CeFIONtect ceramic glaze allows for no stains and molds


  • It comes with a one-year limited warranty.


One of the buyers shared her experience, she said that they installed this seat some months ago. According to her, its installation is very easy. She is satisfied with this product.

4. WOODBRIDGE T-0019 Dual Flush Elongated Toilet — Best Overall

Woodbridge is a renowned brand that provides the best one-piece dual flush toilet.
It is designed with the latest features, like power efficiency, water management, and a soft toilet seat. This looks nice aesthetically as well as it is easy to clean and use. The seat shape is elongated with an appropriate height so any person of different height can use it easily.

The siphon flushing design makes it unique; it flows water quickly and silently to dispose of the waste. A WaterSense license is awarded to this bidet.

You can buy this toilet with confidence because it provides 5 years guarantees.


  • Power efficiency
  • Water management
  • Soft toilet seat
  • Easy to use


  • Easy to use
  • Sleek edges
  • Aesthetically nice design
  • The quiet and quick siphon-flushing system
  • Water Sense Approved


  • Heavy
  • Tricky to assemble small parts


One of the customers who bought this Dual flush said that it is beneficial and works very well. The customer also writes that it looks the same as shown in the pictures. She said that it is super easy to clean; the customer said that she is very satisfied with this purchase.

5. KOHLER K-3987-7 Dual-Flush Toilet — Best Value

Kohler K-3987-7 is one of the best brand items that provide a two-piece flush toilet.

This two-piece toilet is designed for small space bathrooms. If you have a small space this is the best choice for you because it fits smoothly with a round front bowl. One of the good features of this flush is that a handle controls its options by its side instead of buttons on the top.

The seat of this dual flush is comfortable. For those who want to decorate their bathroom, this is the best option for them.


  • Easy to clean
  • Beautiful design
  • Comes in a two-piece
  • Comes with side handles
  • Perfectly fits In small space


  • An easy-to-clean design
  • Ergonomic size for easy install
  • Budget-friendly
  • Side handle for flushing


  • Toilet seat not included
  • Small stool means a problematic fit for some


One of the customers who bought this dual flush says that it is a pretty toilet. She says that it flushes everything super quickly and effectively. The customer was satisfied with their purchase.

6. Convenient Height S Dual Flush Toilet — Premium Choice

These convenient height best dual flush toilets are suitable for those who are taller and older. An average toilet seat is 15 inches in height but this dual flush toilet is raised 20 inches off the ground.
This toilet is a little expensive compared to others but the main thing is you are paying for comfort and quality. The body of this toilet is fully glazed with shining white porcelain. The edges are curved which makes cleaning super easy.


  • Extra height
  • Best for taller and older
  • Curved edges
  • Covered with shining glaze
  • Easy to use and install


  • Tall build for a comfortable seat
  • Slow-shut toilet seat included
  • Easy to install
  • Great look


  • Narrow seat space
  • Insufficient installation instructions


One of the customers described that he bought this toilet for his parents. They are very comfortable while using these. He also said that it is easy to install and clean. He is very happy after buying it.

7. American Standard H2Option Dual Flush Toilet

American standards produce these quality dual flush toilets with ever-clean exteriors to keep them looking shiny as long as possible.

This toilet flushes with siphon jet technology and a PowerWash rim to make for a clean, powerful flush every time. The seat is 16½ inches off the ground to make it taller than average toilets that make it comfortable.


  • Everclean surface
  • Siphonic action dual flush combination bowl and tankless seat
  • Sanitary Dam on the bowl
  • High efficiency, low consumption


  • WaterSense Certified
  • 16-½” tall body
  • Siphon jet and PowerWash rim technology


  • The seat is not included
  • Picture-based instructions for install


One of the customers says that she bought these 8 months ago. She says that it looks very beautiful as in the picture and the most important thing is its shine is still at its peak.

top rated dual flush toilet
  • Save

How Much Water Does a Dual Flush Toilet Use?

A dual flush toilet can save you up to 3,000 gallons of water per year, which is a significant amount of water, considering the average person uses over 10,000 gallons of water per year.
Low-flush toilets use between 1.6 and 1.28 gallons of water per flush. High-efficiency toilets use between 0.8 and 1.1 gallons of water per flush.

Dual Flush Toilet – Which Button to Push?

There are two types of flushing systems for toilets one is the dual flush system, and the other is the single flush system. Most dual-flush toilets have a button or lever for a light flush on the left side and a button or lever for a full flush on the right side.

Some toilets with a dual flush system will have the light flush button or lever labeled with a “W” for water and the full flush button or lever labeled with an “F” for full.
Other toilets will have the light flush button or lever labeled with a “1” and the full flush button or lever labeled with a “2”.

If you are unsure which button or lever to push for a light flush or a full flush, it is best to consult the manufacturer’s instructions. The instructions will usually tell you which button or lever to use for each type of flush.

If your toilet has a single flush system, there will only be one button or lever. Toilets with a single flush system are typically older models.

Helpful tips while a selection of Dual flush toilets

When it comes to choosing a good dual-flush toilet, there are a few helpful tips that you should keep in mind in order to make the best decision for your home.

By following these tips, you can be sure to choose a toilet that will provide you with the best possible function and performance.

  • The first tip is to make sure that you take the time to read online reviews about the different types of dual-flush toilets that are available. This can help you to get a better idea of what other consumers think about the different models that are out there.
  • Ask about the performance of the dual flush system from the people who have already purchased this. They can offer you their personal experiences and insights about which models they found to be the best.

There are a lot of different factors that you need to consider when you are choosing a toilet, so it is important to make sure that you are taking your time and making a well-informed decision.

Waste elimination ability

Once you install the specific toilet, conduct a solid waste disposal trial using plastic beads and water packs. Watch and notice the performance of flush towards solid or liquid waste. Functionality is the main factor in considering any product.

Bowl cleaning

Draw a boundary line on the internal shell of the toilet bowl, start the flushing process, and monitor the boundary line left after the water stay.

Buying Guide to Consider Before Buying Dual Flush Toilet

If you are planning to install a new toilet in your home, you may be wondering if a dual-flush toilet is a suitable option for you.

There are different things to ponder when picking the best dual flush toilet, including cost, water efficiency, and flushing capacity.

Water efficiency

It is another significant aspect to consider when selecting a dual-flush toilet. Dual flush toilets use less water than traditional toilets. They also help to conserve water, which is important for the environment.

Flushing power

This is another regard when choosing a dual flush toilet. They have two buttons for flushing, one for solid waste and one for liquid waste. This allows you to choose the amount of water you want to use for each flush, which can save water.

When choosing a dual flush system, it is important to consider your requirements and budget. These can be a great choice for many homeowners, but they may not be the correct choice for everyone.


Dual flush toilets can range in price from a few hundred dollars to a few thousand dollars, so it is important to find one that fits your budget.

Cost is a vital concern when picking any toilet. While dual flush systems tend to be more expensive than traditional toilets, they can save you money in the end by reducing your water bill.


Dual flush toilets are designed to save water, so it is important to find one that performs well and is efficient.

The shape of the toilet

Traditional toilets have round seats, which are not in trend now. According to users, it proved elongated seats are 5 times more comfortable and work as compared to the round seat.


How Much Water Does a Dual Flush Toilet Use?

A dual flush toilet can save you up to 3,000 gallons of water per year, which is a significant amount of water, considering the average person uses over 10,000 gallons of water per year.
Low-flush toilets use between 1.6 and 1.28 gallons of water per flush. High-efficiency toilets use between 0.8 and 1.1 gallons of water per flush.

What is the height from floor to top of the seat, not the top of the tank?

The floor to the edge of the bowl is about 16.5 inches. The seat that comes with it is about 1.5 inches including the lid. Therefore, about 17 inches from floor to top of the seat with the lid up.

Are Kohler is well worth dual flush: will the green lever flush down toilet paper also?

Yes, as long as it’s a little. Newer houses are built with water-saving toilets in mind. Older homes need lots of water in a flush to keep the line clear.


Toilet seats are an important part of your house interior. After reading this complete guide on Best dual flush toilet reviews, I hope you’re now aware which is suitable for your home. Not only can a toilet flush away waste, but it can also help to protect the environment as well as save you money, like with our top value choice Kohler Wellworth Dual-Flush toilet. So hurry up and buy these for your home.

Alizy Monz
Alizy Monz is a Content Editor at Spadone Home. Alizy has a wide experience in home items but on Spadone Home she mainly covered the topics on different products and provided complete reviews to understand about products. Alizy has a background in Home Decoration and she is passionate about Renovating small spaces and expressing her thoughts in the form of writeups. She has Joined Spadone Home as a Product Review Specialist in 2020. She started writing for decora things for Spadone Home and after putting it a couple of times now she use to provide researched buying guides, and helpful materials for readers to find the best kitchen items, furniture, decor, and household items to create the house they alaways have a dream.