8 Best Dual Flush Toilets of 2019: Reviews & Complete Buying Guide

Dual flush toilets are great and practically have no downsides to them because they only use about 0.8 gallons of water per flush for a simple flush and about 1.8 gallons of water for solid waste flushing.
When you compare the two types of toilets you will realize that dual flush toilets use about 4.5 gallons of water less than the conventional low flow toilets do.
The American Water Association has conducted a study which revealed that an average person’s annual water expenses will reduce on average by about 250$ with dual flush toilets.
The Federal Energy Policy Act has introduced a water limit of 3.5 gallons for low flush toilets back in 1992 before that regular outdated toilet models could use up to 8 gallons of water per flush regardless whether the bowl had liquid or solid waste.
Moreover, those models were notorious for needing more than one flush for solid wastes anyway otherwise the toilet bowl would be filled with waste left behind.

Since then, a lot has changed and the latest models are designed to be eco-friendly and as water efficient as possible. Toilet manufacturers have come up with various ideas to safe water and among their designs is the dual flush toilet that uses the least amount of water when compared to any other type of toilet.

Plus, nowadays American water management companies are encouraged to offer incentives to individuals implementing more efficient dual flush toilets as this reduces the amount of waste that gets sent to waste processing plants as well as water treatment reservoirs.

Some city and county administrations go the extra mile and give store credit to individuals looking to replace outdated toilet models with more modern and efficient ones.

Comparison of 8 Best Dual Flush Toilets in 2019


Brand of Dual Flush Toilet



Seat Height

Editor Rating


9.4 pounds

17.2 inches


23 pounds

17.4 inches


35 Pounds

17.2 inches


34 Pounds

17.8 inches


31 pounds

17.6 inches


28 pounds

17.7 inches

Vitreous China

32 Pounds

16.5 inches


26 Pounds

18.1 inches

Top 8 Best Dual Flush Toilets Review in 2019

#1. TOTO Aquia White Porcelain Toilet Without a Seat

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TOTO has designed the Aquia white porcelain model in a timeless classic style that will fit any bathroom interior design.

Moreover, its compact size means it can be placed in a corner of the bathroom if you have limited space.
The toilet is designed with a dual flush that can be used halfway to add the needed amount of water into the bowl or pressed all the way for a regular flush down.
Moreover, the toilet has been designed to have a textured finish that helps shed water and is much more resistant to dirt, scratches, and stains.
Plus, this TOTO toilet is really lightweight as it only weighs 9.4 pounds and you could install yourself with a little help from a second individual and a standard set of working tools.
Furthermore, it comes with a very clear step-by-step instruction booklet that makes it easy to understand how to install the toilet and how to operate or perform small fixes if the need will arise.
Also, it is a bit taller than the standard TOTO toilet models are hence it will be more suitable for taller individuals or elderly family members.

  • Beautiful design
  • Dual Flush
  • Easy to install
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    Clear instructions
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    Taller than regular toilets
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  • Hollow inside that can trap paper and other waste
  • Users have reported finding it hard to find the right lid for this model
  • The toilet arrives in 2 different boxes
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    Customers did not like the flush as it is very weak

#2. TOTO Ultramax Elongated Porcelain Toilet in Cotton White Finish

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The trapway has been computer designed and tested for super-efficient and clog-free use through the years.

Moreover, this model is sold in 5 different finishes including the high-end CEFIONTECT ceramic finish.

It is designed for households and RV equipped to handle up to 3.8 gallons of water per flush without the water backing up.

Plus, the one-piece design will eliminate the need for frequent cleaning especially between the bowl and the tank.

Customers have reported this model to work flawlessly with a strong flush and bearable noise level.

  • Low flush noise
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    Easy to clean
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    Seamless design
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    Available in several finishes
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    Made in the USA
  • The flapper and the handle are prone to breakages due to poor design
  • No storage space on the tank
  • Very small
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    Little water stays in the bowl

#3. American Standard Dual Flush Two Piece Toilet

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A sleek designed toilet reported by many to be very quiet, elegant and beautiful. This American Standard toilet hasrounded corner and clean two-piece designwith shiny cotton white finish.

Plus, it is easy to clean with minimal effort as the surface is non-stick and the toilet does not have many crevices, corners or grooves.

The seat is has an optimal height for children, elderly and tall individuals.

The toilet is US made using high end porcelain and comes in a box with all the necessary screws and bolts.

Moreover, the toilet has been certified as water-friendly due to the low consumption dual flush.

  • Sleek porcelain design
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    Without crevices, hooks and grooves
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    Strong dual flush
  • Available in limited colors
  • Does not meet Californian ‘low flow standard’
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#4. KOHLER Memoirs Stately Comfort Model K-6669-0

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Kohler Memoirs Stately Comfort is designed with an integrated tank for seamless and easy to clean design without any crevices, hooks or corners.

It is made with a comfortable height seat that offers chair-height seating that will suit everybody.
The seat and the lid are also included in the packaging as well as clear instruction on how to set them up and adjust all the necessary screws and bolts.

Moreover, it is water efficient and the canister flush packs a strong water push to eliminate any possible clogs due to waste, paper, or other waste.

However, customers have reported that the flushing does make a little more noise than other models in this price segment.

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    Known brand
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    Strong dual flush
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    Water efficient
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    Available in several colours including black
  • The toilet finish is prone to water rings
  • Very heavy
  • Needs to be screwed into the floor
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    The flush parts were reported to break after some time

#5. American Standard 2886 Model with Dual Flush in Linen Finish

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American Standard toilets are designed with the Dual Cyclone Flushing System that uses a minimal amount of water yet cleans the toilet bowl thoroughly.

The trip lever has a chrome finish that prevents rusting, scratches and scuffs marks plus the elongated front bowl is fitted with a SoftClose seat that quietly closes and opens.

Moreover, the seat is designed to be at a height of 17 ¼ inches making it optimal for short and tall individuals alike, including the elderly and people with special needs.

Plus, the porcelain is easy to clean and is much more resistant to water and rust markings. Furthermore, this toilet has been tested and ADA certified under the Californian ‘low flow standard’.

  • ADA certified
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    Available in grey and black finish
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    Chrome lever
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    Uses minimal amount to flush
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    17 ¼ inches in height
  • Poor quality control as some bowls were delivered smashed
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    The bottom drain is not symmetrical and could lead to potential clogs

#6. TOTO Ultramax One Piece Ceramic Toilet

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TOTO Ultramax toilet is made from porcelain and has a patented CEFIONTECT glaze finish that gives it a beautiful shiny finish that is resistant to scratches, stains and waste sticking.

The seat is adjusted to a universal height making the seating positing comfortable for a wide range of users with different body complexions.

Moreover, TOTO Ultramax toilet is equipped with E-Max flushing system that is designed to be efficient and very quiet.

On most occasions, the system will flush down even the heaviest of solid waste in one single flush cycle.

Plus, TOTO toilets have been certified as ADA and CEC compliant as these toilets use only 1.28 gallons of water per flush making them some of the most water efficient toilets on the market.

Customers can choose from 5 different colours and 3 different finishes hence you can be assured that you will find the right toilet to fit in with your bathroom interior.

  • Available in several colours
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    Water efficient
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    CEC and ADA compliant
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    CEFIOTECT glaze finish
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    Very quiet
  • Hard to use a plunger in case of a clog because the drain diameter is very small
  • Flapper cannot be changed in case of a breakage
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    Some customers have reported receiving broken toilets due to careless shipping

#7.American Standard Siphonic Dual Flush Elongated Two Piece Toilet

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This American Standard toilet has been reported by many customers to look really luxurious with its sleek and clean two-piece design and shiny white finish.

Plus, it is very easy to clean as the toilet is designed to have minimal crevices, corners and grooves.

Moreover, the skirted trapway creates a flawless look and enables easy cleaning plus the dual flush system only uses about 1.2 gallons of water per flush making this American Standard model very water efficient.

Furthermore, the toilet uses a syphoned flushing tube that reduces the noise and helps prevent leaks, clogs and other problems caused by waste.

The seat is designed to have an optimal height for seating and standing and does not weigh much when compared to other similar models.

The toilet is made using high-quality ceramic and comes with pre-installed seat, wax ring, bolts and a very clear instruction booklet.

Plus, the packaging contains a hand wrench for tightening the bolts and screws.

Also, the toilet has been tested for water efficiency and found to comply with the strict UPS and CSA guidelines.

  • Optimal seat height
  • Available in 3 different colours
  • All tools and a clear instruction booklet is included in the packaging
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    Easy to clean and install
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    Adequate noise level
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    Strong dual flush
  • Sticky porcelain finish
  • The seat is not included in the price
  • The water line can be difficult to attach
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    Does not meet Californian ‘low flow standard’

#8. TOTO Eco Ultramax ADA Elongated One Piece with Sani Gloss Finish

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TOTO Eco UltraMax toilet has low water consumption at just 1.28 gallons of water per flush plus the toilet is glazed in a patented SanaGloss finish that prevents mould, mildew, fungus and debris from sticking to porous porcelain and ceramic surface.

The gloss works great because it seals the china with an ionized barrier that creates a super-smooth surface that is easy to clean with a flush. Moreover, the catalyzed ion particles even repel debris and rusting themselves.

Furthermore, the SoftClose seat has a comfortable ergonomic design and moulded bumpers as well as polypropylene finish to prevent the common and annoying toilet seat bump.

If needed, customers can order a separate seat they can later use to replace the old one. All TOTO seats are made to fit all models regardless whether the toilet model is regular or elongated.

  • Shiny SanaGloss finish that is resistant to debris, mould and mildew
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    Comfortable and ergonomic seat design
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    Very quiet
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    Great customer support
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    Made in the USA
  • Poor flush
  • Packages sometimes arrive with damaged toilets
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Why are some individuals not sure about getting a dual flush toilet?

Some individuals might be a bit confused because dual flush toilets can be confusing to maintain and sanitize.

Plus, if you accidentally press the wrong side of the flush then you will need to flush again thus beating the purpose of dual flush toilets which is primarily to safe water.

Moreover, since the dual flush toilets have a separate flushing mechanism for liquid and solid wastes be prepared to change the flushing system completely even if the problem of faulty flush lies only in one small part breaking.

The dual flush mechanism has two different buttons that can be pressed however their inside mechanism is connected with one another.


We hope this guide has helped you set your mind on making your home a little more efficient and eco-friendly.
We have included only the best dual flush toilets in the article and hope you were able to pick the right model for your bathroom.
Also, you might want to try and browse some local sources to see if you might be illegible for a government refund through the ‘Make America More Efficient’ program that is being run by local councils.

  • Updated January 19, 2019
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