Best Dual Flush Toilets – Reviews and Top Rated Picks

As people become more conscious of the impact they can have on the environment, dual flush toilets are becoming more popular.

In this article, we will show you everything you need to know about dual flush toilets, including reviews of six of the best models currently on the market.

What are Dual-Flush Toilets?

Dual flush toilets are a great way to save water when you flush your toilet which can have a huge positive impact on water conservation over time, and can also save you a lot of money.

flush toilet

They have two flushing buttons. A level one flush for liquid waste which usually uses around 0.8 gallons of water per flush and a level two flush for solid waste which usually uses around 1.6 gallons of water per flush. 

Even a level two flush can save water when compared to an older style toilet which can use up to five gallons of water every time you flush.

Reviews of the Best Dual Flush Toilets

Below you will find a quick reference guide that compares some of the qualities of each of the models we have chosen for our top six picks.





Two Piece

Elongated Bowl

Two Piece

Round Bowl

One Piece

Elongated Bowl

Two Piece

Elongated Bowl

One Piece

Round Bowl

Two Piece

Round Bowl

We will now talk about each of our top picks in a bit more detail to help you to make an informed decision about the best model for you and your family.

1. Toto CST416#M01 Aqua II 

“Dual flush tank option to allow appropriate water usage.”

The Toto CST416M#01 Aquia II Two Piece Toilet comes in two pieces, and is easy to fit together. The install is quick and easy and anyone who knows how to shut the water off would be able to install this model themselves.

The dual tank flush option uses dual max technology to ensure that you use only the minimum of water for each flush.

The Aquia comes in a range of contemporary colours to suit any bathroom, including a sleek, high gloss black which will compliment any décor.

This model comes with all of the standard features you would expect from Toto Toilets including a chrome plated push button flusher, soft close technology on the lid, and a self cleaning bowl. It is made from good quality vitreous china.

The Toto CST416M#01 Aquia II model is ideal for anyone who wants something a bit different while not being limited to choosing a white model.

2. American Standard 2889218.020

“Conserve money and save water with every flush.”

The American Standard 2889218.020 Toilet use H2Option technology for its dual flush system, allowing you to save even more water.

The Ever Clean technology on the surface of the bowl prevents the build up of mould, bacteria and mildew ensuring your toilet will stay clean, hygienic and odour free.

This model has a rounded front, making it a great choice if space in your bathroom is limited, or you just want it to look as spacious as possible.

The traditional design, which has three colour options, is sleek and will blend well into most bathrooms.

The American Standard 2889.218.020 toilet is a great choice for anyone who is looking for all of the modern technology in a toilet but with a traditional look and feel to it.

3. Toto MS970CEMFG#01 Toilet

“You want fixtures that can do it all with effortless beauty…products that connect you with water in ways that enrich the flow of your everyday life.”

This toilet is so much more than just a toilet – it’s a bidet with a built in toilet. Perfect if the thought of a bidet excites you but you don’t have the space for one.

This model comes with front and back water jets that can be adapted to suit your needs temperature wise and pressure wise.

There is also an option for warm air to gently dry you.

The light up remote control can be pre-programmed to store settings for two users negating the need to manually adjust the settings every time you use this toilet.

This model comes with an auto close lid and an auto flush, meaning you can use the toilet without having to touch any part of it and risk spreading germs. It also has an automatic air deodorizer which ensures there are no lingering odours in your bathroom.

The Toto MS970CEMFG#01 Toilet is the ideal choice for anyone who wants the luxury of a bidet without wanting to use up the extra space it would take to have a separate one.

4. Toto CST412MF.01 Toilet

“Toto: A global leader committed to creating products that connect you with water in ways that enrich your everyday life.”

The Toto CST412MF.01 Toilet is a two piece model. It comes with a close coupled, elongated bowl making it comfortable to sit on, and a separate tank.

It comes in six different colour options including a high gloss black finish, all of which come with a chrome finished flushing plate.

This model has an elegant, modern finish with clean lines.

This model comes with the standard Toto self cleaning bowl and soft closing lid.

One of the cheaper models that made our top six, the Toto CST412MF.01 is ideal for anyone on a budget who doesn’t want to compromise on quality, functionality and design.

5. Saniflow 023 Sanicompact 48 Toilet

“Build a half bathroom for residential applications.”

The Saniflow 023 Sanicompact 48 Toilet is primarily marketed as a toilet for residential care where user may have trouble getting to the bathroom and need a self contained toilet.

If this doesn’t apply to you, don’t let that put you off. This composting toilet is also a great idea if you are short on space or eco-conscious.

Using even less water than the other toilets on the list, this model stores waste in a built in tank and it is then turned to compost which can be safely and easily emptied.

This model looks like a conventional toilet and the design would never giveaway the fact that this toilet is in fact a composting toilet – it is much less bulky and more traditional looking than most composting toilets.

The Saniflow 023 Sanicompact 48  is ideal for anyone who is short on space, particularly concerned with being eco friendly or needs a portable toilet that can be used in any room and doesn’t need a water hook up.

6. Kohler K-3987-0 Wellworth Toilet

“Dual flush technology with a side mounted trip level offers the same easy operation as traditional toilet models.”

The Kohler K-3987-0 Wellworth Toilet offers two levels of flushing.

A short, water saving flush for liquid waste and a sturdier, more powerful flush for solid waste. 

The Kohler model’s dual flushing system is particularly efficient at helping to ensure that your toilet doesn’t become blocked.

This model is a rounded bowl model, meaning it is more compact and is ideal for smaller bathrooms or separate toilet only rooms.

It will fit easily into smaller spaces without making the room look cluttered.

It is designed to match seamlessly with Kohler’s Wellworth collection of bathroom pieces to ensure a full, matching suite is available, but it’s simplistic design will integrate well with any custom pieces you already have.

The Kohler K-3978-0 Wellworth Toilet is ideal for anyone who is looking for a smaller solution with a functional, sleek look.

Characteristics of a Dual Flush Toilet

As mentioned in the beginning of this article, the main characteristic of a dual flush toilet is the two button flushing system that allows you to select a low water flush or a higher water flush. Each of these flushes is designed to completely empty the bowl while saving as much water as possible.

Most of the models available will also come with self cleaning bowl technology and soft close lids.

The Benefits of Dual Flush Toilets

When compared to standard flushing toilets, there are several benefits to a dual flush model. These include:

  • Environmentally friendly – The low water consumption helps to reserve energy supplies in the form of water
  • Budget friendly – The reduced amount of water will save you money long term on your water bills
  • Easier to clean – The in built self cleaning bowls will help to reduce the need for harsh chemicals and constant cleaning

We hope that you have enjoyed learning a little bit more about dual flushing system toilets, and we also hope that you will consider one for your next toilet and help to conserve water – who know, perhaps you will even choose one of our top picks!

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