Best One-Piece Toilets 2021: Top Picks & Buying Guide

Are you searching for a toilet that will fit your modern bathroom decor?

Just like your home needs perfect furniture, your bathroom needs a perfect looking toilet. The presence of a premium looking toilet can change the whole aura of your bathroom.

If you want compactness and easy cleaning, I will suggest you pick a one-piece toilet. They don’t have nooks and crannies. Plus, people tend to prefer one-piece toilets as they’re pretty sleek.

Best One-Piece Toilet for 2021 – Comparison


Product Name

Weight (pounds)

Water Consumption


American Standard 2403128.020


1.28 GPF

TOTO MS854114ELG#01


1.28 GPF

Toto MS970CEMFG#01


1.28 GPF

TOTO MS854114S#01


1.6 GPF

American Standard 2034.014.02


1.6 GPF

Though there are plenty of one-piece toilets in the market, just a few of them made it to the top. Obviously, you don’t want to spend a fortune on a toilet that won’t do you any good. If you have decided to buy a new toilet, it’s better to buy the best in the market.

Now that technology has made it to its advanced stage, the manufacturers are also making futuristic toilet sets. You won’t believe how a mere toilet can be so much elegant while it gives you a rich vibe until you see. So why would you keep you using old-fashioned toilets that look stained and lack features?

If you have made up your mind to replace your toilet with a modern one, you’re in the right place. I’m about to give you a tour of the best one-piece toilet reviews. So, without more chit chat, let’s dive in.

The Top 5 One-Piece Toilet Reviews

I’m going to be pretty honest about the fact that I don’t find a lot of one-piece toilets to be powerful enough. However, the ones I’m about to review today are leading the market right now. I’m quite sure about their fantastic quality and uniqueness. You can have a look at these amazing one-piece toilets.

1. American Standard 2403

Space matters a lot while setting up a toilet seat in your desired area. You may like the great design of a toilet, but it may not fit your place well. Try the American Standard 2403 instead. If you judge its looks, you’ll see the toilet not only comes with an amazing design but also the compactness of this product will wow you.

American Standard 2403.128.020

For small spaces, I don’t know what could be a better option than having the American Standard 2403. This toilet bowl blends in perfectly with any kind of space with a round front. It’s not the toilet bowl is small, and this is why it fits small spaces bathroom. It’s just how the manufacturers made it, where it can suit from rags to riches.

Get high performance and fewer clogs at a great price with the American Standard 2403. Besides, it boasts a water-efficient toilet structure on just 1.28 gallons. The height of the rim is just perfect. If you had problems with the height with other toilets, you can say those days goodbye. It’s time to get more ease and convenience with the 16 inches rim height.

The Cadet-3 flushing system boasts a 3-inch flush valve that includes a chemical resistant flapper. The Cadet-3 flushing system received the highest possible rating according to the MaP (Maximum Performance) test.

This stronger and more reliable flush can handle up to 1000 grams of solid waste in a single flush. It means you don’t have to flush twice. The cost of your water consumption will also be less as each flush takes all the waste by using 20 percent less water than other toilets.

Worried about stains, mold, and mildew? The American Standard 2403 features the EverClean surface to the inside and outside of the bowl and tank. This prevents stain growth as well as the presence of mold and mildew on the toilet surface. Also, the odor that causes bacteria will leave instantly. This amazing feature makes sure you get the mirror look toilet for years.

Highlighted Features

  • The product comes with a compact design which can fit perfectly even in the bathroom with small space.
  • The 16 inches rim height makes the toilet perfect for you to sit with comfort.
  • The flushing system can handle up to 1000 grams of solid waste in a single flush.
  • The EverClean surface on the inside and outside of the bowl prevents stain, an odor that causes bacteria, mold, and mildew.

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2. Toto MS854114ELG

Toto, the name of another hot brand that has a successful stand in the market. The brand arrives with its new product that is working as more of a flagship product. Presenting you the new Toto M285411ELG.

TOTO MS854114ELG#01

Constructed with a minimal and sleek design, the toilet fits almost anywhere with a little space. Its compatibility and compact shape will wow anyone anytime.

Cleaning the Toto MS854114ELG is easy. The product features the SanaGloss technology that gives you super smooth feedback. With each flush as the wastes go away, there is always a chance for leaving stains. But the ion barrier glazing makes sure with each flush your toilet remains clean.

This way, your work and extra hassle for cleaning the toilet will be minimized. Plus, the SanaGloss technology will also prevent mold and mildew from growing on the insides and outsides of the toilet. Your toilet, because of these amazing features, will stay new for years.

Flushing system is an important part of toilet bowls. While other toilet bowls use cheap rated technology, the Toto MS854114ELG uses E-Max solution for effective flushing up to 1.28 gallons. You don’t have to doubt the performance of the Toto MS854114ELG. The E-Max solution offers additional up to 20% water saving.

When you sit on the toilet, you’ll know how comfortable it is. The Toto MS854114ELG has the brand’s own SoftClose seat. The seat boasts innovative seat technology along with Comfortable Ergonomic Design. It also has molded bumpers and high gloss polypropylene that is resistant to chemicals and cleaning agents.

There’s no chance of getting injured in the bathroom as this unique seat reduces the chance.  It is constructed with solid, high-impact plastic that eliminates the toilet seat slam.

The combination of built-in SoftClose hinge system allows you to lower the seat down to the bowl gently and easily. Installing the product is quite easy with the top-tightening mounting bolts. All the seats are designed in such a way so that they can fit regular and elongated bowls.

Highlighted Features

  • The combination of SanaGloss makes the product smooth. The ion barrier glazing makes sure the toilet remains clean and glazy with every flush.
  • You can flush up to 1.28 gallons of water and each flush uses up to 20% of less amount of water.
  • The Toto MS854114ELG features SoftClose seat that comes with innovative designs.
  • The solid construction of high impact plastic not only makes it durable but also eliminates the toilet seat slam.

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3. Toto MS970CEMF

Love the Toto Brand? Well, here’s the Toto MS970CEMF which may grab your attention even more. What makes it different from other one-piece toilets is the dual-max flushing system. Toto MS970CEMF has a 1.28 Gallon Flush and a 0.9 Gallon Flush.

Toto MS970CEMFG#01

You don’t have to use an external push shower anymore. The Toto MS970CEMF has built-in water supply system in the front and in the rear that will allow you to wash your private parts very easily, without you being using a push shower.

Now here’s the extra feature about the water supply that can make you go wow. In winter, you’ll obviously want to use hot water, right? Well, the Toto MS970CEMF’s water supply technology comes with front and rear warm water system. You can set your desired temperature and adjust the pressure controls whenever you like.

The Toto MS970CEMF is surely one futuristic product. Did I mention you don’t have to use your hands to close or open the lid? Hold on there before you have your jaws dropped. The Toto MS970CEMF arrives with a fully automated feature. The toilet lid closes and opens itself very gently in a futuristic way. Just as you finish up, the lids will close all by itself. You’ll also be provided remote and illuminated touchpad to control the operation.

As for the water consumption is concerned, the Toto MS970CEMF has an increased flushing capability using a very minimal amount of water. According to my research, it is one of the best products that use a very less amount of water compared to its competitors. This product ensures you can save your water bill perfectly.

Don’t stop reading as the features do not end here. Say goodbye to those days where you had to use more toilet paper even after cleaning yourself to remove the water from your body. The Toto MS970CEMF has a warm drying system which will dry your body part after you’re done.

Highlighted Features

  • The Toto MS970CEMF comes with a dual automatic flush system so you don’t have to use your hands to push any flush button.
  • You won’t be needing to use any external push shower to get yourself cleaned. The Toto MS970CEMF has got it covered with its automated water supply system.
  • The lids are completely automated. It closes all by itself once you leave the toilet.
  • The flush uses a very minimal amount of water and this saves you water and money.

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4. TOTO MS854114S

If you are fond of the Toto toilet brand, you need to check out the Toto MS854114S. The toilet boasts a very sleek and high profile design with innovative features. The 12 inches rough toilet makes sure you can sit on it comfortably while you’re using it.

Best one piece toilet

The Toto MS854114S comes with a 3-inch flush valve brought to you by G-Max. The 2-⅛ inch glazed trapway the flush comes with makes sure you get an increased flow of water. Besides, compared to other flush systems, the water fills the bowl quickly and takes away all the wastes with it forcefully.

Sometimes, the wastes that the flush takes away re-appears in the toilet bowl. This is a very disgusting experience. With the G-Max’s powerful siphon jet feature, the Toto MS854114S ensures all the waste goes down and stays down permanently.

The Toto MS854114S teams up with SoftClose and brings their latest seat with innovative and smart seat technology. It is designed ergonomically to provide you comfort while you sit on it. Sometimes, the toilet seat slam can cause injury. However, the SoftClose seats are constructed with solid, high impact plastic. This not only increases the durability of the product but also ensures the toilet doesn’t break during the seat slam.

To ease up your installation process, the Toto MS854114S with top-tightening mounting bolts. The seats are friendly with almost all kind of regular or elongated bowls.

Highlighted Features

  • Comes with a compact structure and lets you sit comfortably with ease.
  • The water fills the bowl quickly and takes the wastes out quickly.
  • With the G-Max’s powerful siphon jet feature, the toilet makes sure all the waste stays down.
  • The SoftClose seats are constructed with solid, high impact plastic that ensures increased durability.

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5. American Standard Champion 4

One of the best parts of the American Standard brand is, always put their flushes on tests. Presenting the Champion 4 which has received the highest rating of 1000 grams in an independent Maximum Performance (Map) test. Now here’s a fun fact that can make you laugh.

American Standard 2034.014.020

The manufacturers even tested the Champion 4 with a bucket of golf balls. Yes, the Champion 4 successfully gulped in a whole bucket of golf balls in it using its flush. I don’t think you’ll ever doubt the quality of the flush after knowing this.

The Champion 4, as the name says it, can actually surpass other toilets with its features. The toilet flush valve can push the water into the bowl three times faster than a standard 2-inch flush valve. Similarly, it can work twice as fast as a 3-inch flush valve, and one-third faster than a 3-¼ inch flush valve, thanks to the 4-inch piston action accelerator it comes with.

The American Standard Champion 4 uses the largest trapway in the industry. The 2-⅜- inch massive, wide-open, fully glazed trapway can move a 40 percent larger mass than a 2-⅛-inch trapway. Furthermore, it can move almost 70% larger mass than a standard 2-inch trapway.

You won’t have to struggle with toilet bowl cleaner and a toilet brush to clean the commode. The Champion 4 has teamed up with EverClean antimicrobial surface inside and outside. This prevents the growth of stain and odor-causing bacteria. At the same time, it kills and prevents mold and mildew. The toilet will give a mirror-like look even after years.

With all these features, you’ll never face any problem with this amazing one-piece toilet. However, if you do face any issue, there’s no room for stress at all. The Champion 4 is backed up by American Standard’s 10-years warranty offer. Why so many years as a warranty? The company has this much confidence that their product won’t get its quality faded even in 10 years.

Highlighted Features

  • The flush valve can push water into the bowl three times faster than a standard 2-inch flush valve.
  • 2-⅜- inch massive, wide-open, fully glazed trapway can move a 40 percent larger mass than a 2-⅛-inch trapway and 70% larger mass than a standard 2-inch trapway.
  • The product comes with EverClean antimicrobial surface on its inside and outside. This prevents the growth of stain and odor causing bacteria, molds and mildews.
  • The Champion 4 is backed up by American Standard’s 10-years warranty offer. If you face any issue with the product, have it fixed for free.

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How to Find the Best One-Piece Toilet for Your Washroom?

Now that you’ve decided to buy the good one-piece toilet for you, here’s a reminder I want to give you. Do you know how to check if you’re buying the right one-piece toilet?

If you don’t have proper knowledge of what to look for while buying a toilet, you may end up buying the wrong one.

To help you jump over this situation, let me show you the things you need to consider. Also If you’re still confused as to what piece toilet you should get, You can also compare and contrast one-Piece Toilet Over a two-Piece Toilet.

Learn about Innovation

As technology is getting more advanced, why will the toilets fall behind? There are lots of toilets with different types of innovation.

Yes, they will vary in price as well, but you want to make your life easier, right? Look for the ones that let you save time. There are now automated toilets that work without your hands doing anything.

Go for the Ones That Save Water

The environment needs water conservation and you need to save your water bill. Standard toilets flush up to 1.6 gallons per flush these days whereas older ones used to flush 3.5 gallons per flush.

Which means, the modern ones use less than 50% of the water used by older ones. So, go for the newer ones as it will save a lot of water. And less water usage means less water bill.

Choose the Right Configuration for Your Bathroom

Toilets come in different configurations so that they can meet different needs. To ensure the toilet fits your bathroom, you need to select the ones with the right structure and configuration.

You can go with the round-front toilets that feature bowl with a more compact design. Plus, they’re best for fitting inside smaller bathrooms and powder rooms.

Elongated toilets, on the other hand, have a bowl that needs extra room in the front so that you can have added comfort.  There are also compact elongated toilets as well. These ones are elongated in shape but fit into the same space just like the round front toilets.

Determine the Rough-in and Size Measurements

Toilets come in various shapes and size. It will be a wise thing to check the width, depth, and height of your space first.

You’ll find that almost all the toilets bolted to the floor 12 inches from the wall and this is known as a rough-in dimension. The 12-inch rough in toilets are the most common ones but you’ll find the 10-inch rough-in toilets and 14-inch rough-in toilets available for bathrooms as well.

Try to Look for a Taller Toilet for More Comfort

Usually, the rim height of traditional toilet bowl rim is about 15 inches from the floor. The toilet gains an extra ½ to 1 inch of height for the seat ring.

Always look for a taller toilet which usually comes with 16.2 inches in height. Taller toilets add more comfort and ease.

Look for the Right Flushing System

Look for the flushing system that gulps in more amount of wastes with one single push. Search for the toilets that have a powerful jet system that can scrub the entire bowl, removing everything that stays in the path.

Look for the MaP Score

To check out the performance, looking for the Map score is a must. The more the MaP score a toilet has, the better performance it has.

Always go for from 1000g-600g MaP score which ensures a toilet to have great flushing performance.

Frequently Asked Questions

Q: How can I upgrade my toilet?

Ans. You can install a SoftClose seat if your toilet doesn’t have one. It ensures the toilet doesn’t get damaged by getting a strong toilet seat slam.

Q: Do one-piece toilets save water?

Ans: Yes, compared to most toilets out there in the market, the one-piece toilets use a minimal amount of water. Therefore, you’re getting fewer water bills at the end of the month.

Q: Is it easy to install one-piece toilets?

Ans: Most of the one-piece toilets are easy to install if they have top-tightening mounting bolts.

Q: Which brand has the best features?

Ans. Both the Toto and American Standard brands are on the leading place in the marketplace of one-piece toilets.

However, if you want my personal opinion, then I’ll definitely choose the American Standard brand toilet. It has more features than its competitors.

Final Words

In this article, I tried to provide almost all the information you need about the best one-piece toilet. Your journey for the search on the top rated one-piece toilet may just end over here.

Just read the article carefully, and always set your priorities. All of these products are worth buying, but at the end of the day, it’s you who makes the decision on which one to choose.

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