Best Dual Flush Toilets – Full Comparisons

finger pressing dual flush buttons

Today many homeowners are opting for dual flush toilets instead of standard single flush toilets. If you are planning to upgrade or replace your old toilet, dual flush toilets are well worth the consideration.

It goes without saying that one of the biggest benefits of a dual-flush toilet is that they will greatly reduce your water costs.

They have two buttons: a smaller one for flushing liquids and a bigger one for flushing solid waste. Many dual flush toilets will differ, but the most prevalent combination of water usage is 0.8 and 1.6 GPF.

But as you well know, there’s a lot more to a dual flush toilet than the water conservation. Let’s dive into the other factors, and the toilets themselves.

Dual Flush Toilets Comparison

TOTO Washlet G500

Classy and clean.

Toilet TypeWater UsageDimensions (in.)MaterialSeat HeightWeight
One-piece, Elongated0.9/1.28 GPF28½ x 11¾ x 25¼Ceramic16⅛ inches112 lbs

This model is 16 1/8 inches from the floor to the seat, making it Universal height and ADA compliant. It’s very comfortable and easy to use for young and old, short and tall. After using the toilet you can just stand and walk away without looking back, hence why it is called a self-cleaning toilet.

This is the only dual flush toilet that will make you feel like you’re floating on air while sitting down.

We like that it comes from a reputable brand, of course. Additionally, it has a compact design, making it suitable for even small bathrooms.

It comes with a remote control that allows you to access features such as the automatic open and close lid, which is a rare feature that is hard to find on other toilets.

Again, this toilet flushes waste automatically at just the press of a button on the remote control. It comes with rear and front auto warm water washing (needs an electrical connection). You can adjust the water pressure with the remote. It also provides you with a heated seat with temperature control in the winter season.

It comes with a CeFiONtect glaze that is very effective in ensuring that the toilet is sparkling clean. This feature also keeps away bacteria and germs from the toilet.

We recommend using a plumber to install this toilet, as it’s a little more involved than a typical toilet. Once it’s installed, though, it’s a really great addition to your bathroom and works superbly.

This model is the G500. There is another model in similar series which is G400. The difference between the G500 and G400 is that G400 sprays the bowl, making it more slippery to clean the waste from its surface easily, while the G500 doesn’t have this function.

The toilet bowl, the washlet seat, and the remote will all come in one box.

TOTO Washlet G500 pictured

Pros and Cons of the Washlet G500

  • Auto close/open lid.
  • WaterSense certified.
  • Automatic air deodorizer.
  • Illuminated touchpad.
  • Includes remote control.
  • Air dryer.
  • Dual-Max flushing system.
  • Installation is difficult, and will likely need a professional installation.
  • A bit pricey.

Woodbridge T-0019

Affordable and sleek.

Toilet TypeWater UsageDimensions (in.)MaterialSeat HeightWeight
One-piece, Elongated1.0/1.6 GPF31 x 18 x 28Porcelain17¼ inches152 lbs

This model is a generous seat height at over 17 inches. This makes it a great contender for a dual toilet choice if you are wanting comfort as well.

Another unique advantage with this toilet is how well suited it is for small bathrooms. At only 18 inches wide, it’s able to fit in many spots that some other traditional toilets won’t.

When doing our research, we were very surprised with how many customers were impressed with how quite the toilet operates. It doesn’t happen very often that a toilet that can fit in a small household can also not be easily heard. Very impressive indeed.

To top it all off, the T-0019 is very affordable. It’s priced like a two-piece, single flush toilet, but is far from that.

With all these unique characteristics, it’s no surprised that the T-0019 is high on our overall list.

Woodbridge T-0019 pictured

Pros and Cons of the Woodbridge T-0019

  • Quiet flushing.
  • WaterSense certified and ADA compliant.
  • Good choice for smaller bathrooms.
  • Modern design.
  • Installation is difficult, and will likely need a professional installation.

American Standard H2Option

A history of performance.

Toilet TypeWater UsageDimensions (in.)MaterialSeat HeightWeight
Two-piece, Elongated.092/1.28 GPF29¾ x 15 x 30Vitreous China15 inchesUnknown

The American Standard H2Option has been one of the most preferred dual flush toilets by many homeowners for a few years now. It doesn’t perform better than the Toto G500, but it is very reliable and affordable.

The H2Option has some similar characteristics to Glacier Bay counterparts. Some of which include a quiet flush, good for smaller spaces, and very reasonable price point.

However, there may be some similarities that aren’t as beneficial. The flush isn’t quite as powerful, and sometimes it may need an additional flush to get everything down. The MaP score of the H2Option is 600, perfectly acceptable, but behind many of it’s counterparts at the same price point.

All that said, the H2Option is a solid choice, and this is backed by strong reviews in everyplace that we researched.

American Standard H2Option 2887218.02 pictured

Pros and Cons of the American Standard H2Option

  • Quiet flushing.
  • WaterSense certified.
  • Good choice for smaller bathrooms.
  • CALGreen Compliant.
  • Not ADA compliant.

Glacier Bay N2428

Can take on commercial or residential uses.

Toilet TypeWater UsageDimensions (in.)MaterialSeat HeightWeight
Two-piece, Elongated1.1/1.6 GPF29 x 18½ x 32½Vitreous China16½ inches86.8

Perhaps the most surprising thing about the N2428, and what sets it apart from many other toilet models, is the fact that it comes with all the parts needed to install it. Additionally, it’s lightweight (a common Glacier Bay characteristic). Combine these two factors and you have a toilet that’s easy to install.

Like many other Glacier Bay models, the N2428 is popular in commercial settings as well as residential. Mostly because of the price and ease of installation.

As if all that wasn’t enough, this model is ADA and WaterSense certified. It’s quite unusual for a toilet this high (16.5 inches) to cost so little. Definitely a great value all the way around.

You also have the useful option of choosing between the standard 12″ rough-in, or a 10″ for smaller spaces.

If we had to complain about anything with the N2428, it would be that sometimes it needs a second flush to clear all the waste.

Glacier Bay N2428 pictured

Pros and Cons of the Glacier Bay N2428

  • Quiet flushing.
  • WaterSense certified and ADA compliant.
  • Multiple rough-in options.
  • Comes with all parts needed for installation.
  • May sometimes need multiple flushes to get everything down.

Factors To Consider When Buying a Dual Flush Toilet

If you are still not sure which is the best toilet for you to buy, here are some important tips you should consider.

Toilet Seat – You can either choose an elongated or round-front bowl. The elongated toilet seat is more comfortable than the round toilet seat.

Bidets – The best dual flush toilet should be able to accommodate a bidet seat. The best thing about bidet toilets is that they are more hygienic than standard toilets. Check our list of Top 7 Bidet Toilets.

Appearance – Ensure that the toilet you have chosen matches well with your bathroom décor. You should also consider the size of your bathroom to ensure that your pick will fit perfectly.

Installation – Look for a toilet that is easy to install. It should also come with clear instructions on how to install it. Check out the toilet installation cost.

Price – When buying a dual flush toilet, cheap ones are often not your best bet. Most of the cheap toilets have quiet flushes, but may not get everything down with every flush. Additionally, they can sometimes crack early on in their lifetime. Finding a middle range price like $250 – $350 is usually a solid choice.

Water Usage – The main purpose of buying a dual flush toilet is to help you cut your water bills. The best option should use 0.8-1.28 GPF.

Final Verdict

Investing in a great dual flush toilet is one of the best home investments you can make. Think about the amount of water your toilet consumes every year. The best thing about all of the above units is that they will save you money in the long run. Irrespective of your budget, you will still find a toilet that matches your requirements from the above products.

All the dual flush toilets on this list have high ratings on various review sites. Apart from that, they come with wonderful features that enhance their functionality. When selecting the best, you need to consider the price, features, and customer reviews on Amazon. We have even included the product links of various products to make your work easier. Make a decision today to upgrade your restroom with any of these dual flush toilets, and you will notice a very big difference in your bathroom experience.

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