The 10 Best Dual Flush Toilet Reviews and Complete Guide 2021

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Dual flush toilets are increasingly becoming popular due to their ability to save water as compared to standard toilets. These toilets save up to 68 percent of water in a light mode, but some brands go beyond and provide more excellent features than conventional toilets do. Apart from saving resources, reducing water usage helps lower water bills.

Therefore, it is advisable to consider your needs before picking the right product for you. This will help you decide on the design, price range, size as well as other additional features. However, choosing the best dual flush toilet can be a considerable challenge due to the number of products available on the market today.

Fortunately, we have prepared a detailed article to make things easier for you. We have researched and picked the best dual flush toilets from a list of the top-rated products on the market. Besides, we have also prepared a buying guide to provide you with additional information to help you get your ideal product.

10 Best Dual Flush Toilet Reviews

As mentioned above, we have done a thorough research and prepared a review of the 10 best dual flush toilets. Here are our picks that we believe have all the features that you might need in your ideal bathroom.

1. TOTO CST454CEFG#01 Drake II Elongated Toilet

The TOTO CST454CEFG#01 is our top pick dual flush toilet as it is a high profile toilet with great features. It is a top-quality two-piece toilet with high efficiency due to its incredible flushing action.

Besides, the toilet comes with a powerful flush system (1.28/4. Gallons per flush) that allows it to save 20 percent more water than 1.6 GPF toilets. The Double Cyclone, Dual Flush technology offers a powerful centrifugal rinse.



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It also includes a CEFiONITECT glaze that provides its bowl with lubricious quality. This makes the toilet easier to clean as compared to some products on the market as the bowl prevents particles from sticking on it. Moreover, the toilet has also a SoftClose toilet seat that is sold separately.

In addition, the toilet has a universal height that makes it more comfortable across a wide variety of users. Therefore, it is among the classic dual flush toilets to installing in homes and public places.

Finally, TOTO is a well-known brand for their holistic design principles that ensures excellent performance, functionality, quality and most importantly customer satisfaction. The high profile Toto toilet has excellent reliability, which translates to superior performance and reduced maintenance costs.


  • Features a great design
  • A product of a reputable brand
  • A universal height, making it ideal for most users
  • Comes with a powerful flush system
  • Includes a CEFIONTECT for improved lubricious quality


  • Relatively expensive

2. Woodbridge T-0018 One Piece Dual Flush Elongated Toilet

Woodbridge T-0018 One-Piece Toilet is our alternative pick for runners-up dual flush toilets. The one-piece elongated toilet features a sleek modern design. The skirted trapway makes cleaning easier and creates a stylish look.

Apart from the sleek, clean look, the design makes the toilet complement a variety of styles. Moreover, the ergonomic design allows for easier cleaning. The toilet has no grooves and corners as compared to conventional toilets.



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WoodBridgebath T-0018 includes an excellent soft closing seat with a durable stainless steel seat hinge. With quality construction and design, the product is unlike other toilets that can easily be damaged. In addition, the toilet offers a comfortable height making it comfortable for a variety of individuals.

Finally, the toilet includes a professional instruction manual and a unique hand wrench tool. This allows for hassle-free instruction and maintenance. Furthermore, the dual flush toilet includes floor bolts and a high-quality wax ring, which eliminates the need for extra expenses installation.


  • Comes with a quality soft closing seat
  • Easy to clean
  • Features a sleek modern design
  • Allows for easy installation
  • Provides convenient seat height
  • Quality construction


  • Requires constant scrubbing
  • Relatively too tall for short individuals

3. American Standard 2886.216.020 H2Option Elongated Two-Piece Toilet

The American Standard 2886.216.020 H2Option is another high-end product that allows you to lower your water bills as it saves water with every flush. Apart from allowing you to conserve water, the high profile dual flush toilet offers flexibility as you can choose between standard 1.6-gallon flush 1.0-gallon flush.

Moreover, the toilet features a two-button actuator on the top of the tank that enables you to select the most appropriate flushing options every time.



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The toilet comes with a tankless seat and a bowl combination for siphonic action dual flush for low water consumption and high efficiency. Consequently, the product meets EPA WaterSense as it utilizes 25 percent less water than conventional toilets.

The unique siphonic action technology enables you to conserve more water without compromising performance. This technology allows the toilet to eliminate more bulk with less water while ensuring that the toilet is super quiet.

The American Standard H20ption includes a PowerWash rim that traps air inside the chamber that is fed with water from the tank. This trapped air helps pressurized water for quality performance and high efficiency.


  • Features a siphonic action technology for great performance and efficiency
  • Includes pressurized rim for a power-washing and scouring of the toilet bowl
  • Super quiet flush
  • Sturdy construction
  • A sleek design ideal for bathrooms with limited space


  • The stool may stick on the bowl sometimes.

4. Niagara 77001 WHCO1 Stealth Elongated Toilet

If you want a relatively affordable dual flush toilet that is great in conserving water, Niagara 77001 WHC01 could be a great option. This is another two-piece dual flush toilet that includes a tank and bowl.

Most people prefer one-piece units as they are ready for installation, but two-piece also has their benefits. Usually, it is considerably easier to find parts for two-piece toilets during repairs and maintenance.


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The dual flush unit features a sturdy construction as it is made of long-lasting vitreous china material. Besides, the toilet features a sleek design, which means that it can easily fit in most bathrooms.

As mentioned earlier, the toilet consumes less water as compared to most units on the market. The unit utilizes 0.8 gallons per flush, which explains why it is considered an ultra-high efficient dual flush toilet.

The unit has a clean look and is ADA compliant, which means that the bowl is elongated and is set a bit higher. With this design, the dual flush toilet offers more comfort and ideal for people with achy joints or mobility issues.


  • Pressure-assisted flush, which prevents clogs
  • Ultra-high efficiency flush
  • Powerful and super quiet flush
  • ADA compliant
  • Relatively affordable


  • Its design limits water storage, since the lever is on top of the tank


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5. Woodbridge T-0019 Dual Flush One-Piece Elongated Toilet

This is another top-quality dual flush product by Woodbridge. The toilet features a luxurious design that compliments various styles and with a sleek, clean look. Moreover, Woodbridge T-0019 Dual flush toilet design makes it easy to clean the toilet. The skirted trapway makes cleaning easier and creates a sleek design.


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It also includes a siphon flushing design for powerful and super quiet flushing. The fully glazed flush ensures that there no leaks and clogs. This enhances its performance, functionality and user experience while also reducing maintenance costs.

As the name suggests, WoodBridgebath T-0019 one-piece toilet comes with a one package design. This includes a wax ring, pre-installed bidet toilet seat, installation instructions, and floor bolts. Besides, the toilet features a quality Soft Closing toilet with a durable steel seat hinge.

With the elegant artisanship and quality construction, the toilet provides excellent functionality and styling than most of its competitors. The detailed installation manual offers precise instructions for easier installation and maintenance.


  • Features quality construction and design
  • Offer great value for money
  • All in one package design
  • Comfortable height
  • Great look and sleek design
  • A powerful and super quiet flushing system


  • Considerably expensive
  • Great toilet but comes with shabby buttons


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6. Saniflo 023 SANICOMPACT One-Piece Dual Flush Toilet

The Saniflo 023 is one of the best flushing one-piece toilets on the market today. It features a compact design that allows it to fit in tight spaces where most dual flush toilets cannot fit. However, despite the miniature size, the unit delivers a high performance that matches two-piece toilets.



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It also comes with a clean, sleek look that improves the outlook of your restroom. Moreover, the unit is also a macerating unit unlike other dual flush units, which explains why it is unique.

Choosing a toilet with a macerator ensures that the unit offers a beautiful user experience. It makes it easy to eliminate the waste as it sluffs wastes. This makes it an ideal dual flush unit for your basement.

Besides, apart from being a dual flush and macerator toilet, it also offers high water efficiency. It only requires 1 gallon per flush to function effectively and clean the waste quickly and thoroughly.


  • Includes a dual flush and macerator system
  • Compact size
  • Water-efficient as it requires 1.0 GPF
  • Comfortable and convenient height
  • Simple design but highly effective
  • Compact and stylish


  • Made of plastic
  • Requires regular cleaning

7. White and Green Porcelain Elongated Two-Piece Toilet

White and Green Porcelain Dual Flush is a valuable and reliable fixture for your bathroom from “The Renovator’s Supply.” The elongated dual flush unit helps save water and your water bills, thanks to its unique flushing system.

Its dual-flush mechanism features a push-button and can save up to 25, 000 gallons of water every year. It also offers two flush options, a heavy 1.6- gallon flush and a light 0.8-gallon flush.



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Apart from the flush system, the Renovator’s Supply bathroom fixture meets and even surpasses EPA water conservation standards. In addition, the unit comes with a fashionable white porcelain finish, and for those who need to complement the existing fixtures, it also includes a Pantone color match.

Finally, the porcelain elongated dual flush unit includes an elongated plastic seat with a quiet and safe non-slam mechanism. It also features the brand’s proprietary Reno-Gloss finish for stain and scratch resistance.


  • Reliable and valuable bathroom fixture
  • Comes with an excellent flush system
  • Offers great functionality
  • Wonderful craftsmanship and design
  • Meets and even surpasses EPA water conservation standards
  • Considerably easy to install


  • Few leaking cases
  • Relatively expensive
  • Dependable product but poor customer service

8. TOTO CST416M#01 Aquia II Two-Piece Toilet

The CST416M#01 Aquia II is another dual flush from the famous brand TOTO. It comes with a compact and sleek design that results in a unique appearance.

Therefore, the unit would complement any bathroom with an ultra-modern interior design. In terms of performance, the dual flush almost matches the American Standard, but it provides a little more visual definition.



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With the skirted trapway, the TOTO Aquia II prevents crannies and nooks associated with traditional units. This makes cleaning much easier. Moreover, it is also available in a variety of colors that allows you to opt for one that fits your bathroom’s décor.

The toilet comes with a dual-max flushing system that allows the unit to work efficiently, even with little water. This unique flushing system works by creating a great force that enables it to push waste down the drain easily and completely. Therefore, if you want to upgrade from a toilet that has clogging issues, this unit is worth your consideration.


  • Comes with a powerful dual flush system
  • Compact size and great design
  • Elongated toilet bowl
  • Uses just 1.6 GPF
  • Easy to clean
  • Discards loads of waste daily without clogging issues


  • Does not include a toilet seat

9. American Standard 2887.216.020 Siphonic Two-Piece Elongated Toilet

This is another top-quality Two-piece elongated dual flush toilet from American Standard. The 2887.216.020 H20ption is known for its efficiency in conserving water.

Besides, the unit is worth your consideration if you are looking for a quality product with a sleek design that allows it to fit in bathrooms with limited space. Its overall length is shorter by 2 inches and has the round front model.



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With the high efficiency, the toilet allows the user to select the right volume flush by using the 2-button actuator set on the top of the tank. You can choose between a 1-gallon flush that utilizes 37.5% less water and a 1.6-gallon flush when it is necessary.

The 2887.216.020 meets the EPA WaterSense criteria and goes beyond the flushing capacity standards of the Agency. With the glazed trapway and siphon action jetted bowl, the toilet eliminates all the waste quickly and entirely regardless of whether you use light flush or full flush.


  • Round front model for extra spaces on the sides
  • Easily accessible mounting bolts
  • Parts readily available
  • Saves 20% more water than conventional units do
  • Ideal for a bathroom with limited space


  • Slightly inconvenient for individuals with knee, leg and joint issues
  • Allows accumulation of dirt, mold, and bacteria at the seam

10. KOHLER K-3987-96 Wellworth Two-Piece Toilet

KOHLER is another renowned brand for making bathroom fixtures and water appliances. This unit comes with a round-front design that makes it ideal for bathrooms with limited space as compared to elongated toilets.

Thus, unlike elongated toilets, KOHLER K-3987-96 is more suitable for powder rooms and smaller bathrooms. It is also good to understand that the miniature size does not affect or reduce the efficiency of this unit.



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The dual flush toilet is not elongated, but it is still comfortable. Besides, its design creates a space at the top of the tank that can be used for more storage. KOHLER Wellworth comes with a powerful flush system and glazed trapway that ensures quick, efficient and quiet flushing of wastes down the drain.

Just like other dual flush toilets, KOHLER-K-3987-0 offers two flush options, a light 1.1 GPF flush, and a heavy 1.6-GPF flush. The light flush option allows you to save significant amounts of water while the heavy flush helps discard large amounts of waste when necessary.


  • Easy to install
  • Ideal design and rectangular opening that prevents clogging
  • Includes a flat top for extra storage space
  • Popular and reputable brand
  • Offers two flush options


  • Not suitable for those looking for elongated toilets
  • Might require a broader plunger in case it clogs

How To Choose The Best Dual Flush Toilet

As mentioned earlier, finding the superb flushing toilet can be a daunting task due to the high number of products on the market.

However, if you have the right knowledge of what to look for when deciding on the unit to purchase, the process becomes much easier.

Here we discuss key factors to consider when looking for the best bathroom fixture. Besides, we also answer two crucial questions to enlighten you on how to choose a dual flush toilet that meets all your requirements.


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The following are some of the factors that you need to put into consideration to ensure that you choose the right unit:

Toilet Styles

When it comes to dual flush toilets, there are two different styles to choose from, two-piece or one-piece style. The most toilet style of the two is the two-piece, which means that the tank and the bowl of the tank are separate pieces that are bolted together.

As mentioned earlier, two-pieces are mainly preferred by some users, as it is easier to find their parts and tends to be less expensive than one-piece toilets.

On the other hand, one-piece toilets are easier to install as compared to their counterparts. Moreover, one-piece offers a sleeker design and is less likely to trap bacteria as there no hidden spaces.

Bowl Height

The other important factor to consider is the height of the toilet seat. Selecting a product with an ideal height offers much-needed comfort.

Besides, it also determines whether a suitable toilet for people with mobility issues and different sizes. Usually, most individuals prefer elongated toilets, as they are more comfortable than conventional toilets.

Toilet Bowls

The dual flush toilet should have a great design that enhances the look, functionality, and performance. Choosing a toilet with a round-front bowl helps create enough space on the sides, making it ideal for bathrooms with limited space. Moreover, it is also good to pick a unit with a compact design, but without compromising on your comfort.

Water Usage

Studies have shown that toilets account for about one-third of the water used in most households in the U.S on average. Therefore, there is a great need to invest in a unit that works efficiently with little water.

The best product should be certified by WaterSense (EPA), which means that it should utilize 1.28 GPF or lesser than that amount of water.

Flushing Systems

Usually, the gravity-flush and the pressure-assisted systems are the most common flushing system in most toilets on the market.

Pressure-assisted systems help prevent clogging issues, but are more expensive and tend to be noisier than gravity-flush systems. Consequently, the gravity-flush system is more common as it is also the simplest flushing system.

What is the best dual flush toilet?

The best dual flush is one that is dependable, offers great features and is within your budget. Consequently, it is advisable to pick a toilet that has high efficiency as this helps save water and water bills in the end.

Besides, ToTo and Saniflo toilet should also feature sturdy construction and excellent craftsmanship. This aids in lowering maintenance costs as well as proving a unique user experience.

It is also important to purchase a toilet with an excellent finish and skirted trapway as this makes cleaning easier. Finally, we would recommend that you choose a product from popular brands like KOHLER, TOTO, American Standards and much more to reduce the risks of buying the wrong unit.

Who makes the best dual flush toilet?

Well, the answer to this question cannot be definite since every brand has its advantages and drawbacks. Besides, different users have different preferences when it comes to dual toilet features.

For instance, some people prefer elongated toilets made from a particular material and with certain additional features.

Nevertheless, we would recommend that you select a product from popular brands like the ones mentioned above. Buying a product from well-known brands allows you to get enough information about the functionality and performance of the item as well as the assurance of quality.

Besides, popular brands are likely to have met all the requirements for them to manage to be in the market for long.

Final Verdict

Overall, finding the best dual flush can be overwhelming, but it is an important thing as it helps save water, money and satisfies your personal needs.

However, finding the right unit can be quite a hassle, especially when you consider the number of factors that you need to put into account. Some of the major factors to look out for include styles, bowl design, sizes, prices, and additional features.

We believe that the products that we have reviewed above will help you get the perfect dual flush toilets. Moreover, you can as well use the information on our buying guide section to choose other units in case you do not like the ones above.

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