Save water and money with this efficient dual flush toilet design. If you’re tired of watching your water bill creep up, a dual flush toilet might be your new best friend. It’s simple: two buttons give you two flush options. You choose the right one for the job. That’s it. Your wallet and the planet will thank you. Plus, installation is easier than you think.
You don’t need a plumber for this upgrade. Most models fit standard rough-ins, so you can swap out your old toilet in an afternoon. The water savings add up fast. You could save thousands of gallons a year. That means more cash in your pocket. And honestly, it feels good to do something simple that helps the environment. Ready to make the switch?
Product Comparison Table: 9 Best Dual Flush Toilet
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HOROW T0338W Compact One Piece Toilet, ADA Chair Height…
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9.8 |
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Casta Diva Elongated One Piece Toilet with 17″ ADA…
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9.6 |
Read Review |
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Casta Diva Elongated One Piece Toilet with 17″ ADA…
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9.4 |
Read Review |
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BayRoll One Piece Sleek Modern Toilet, ADA Chair Seat…
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9.2 |
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St. Tropez One Piece Elongated Toilet Dual Vortex Flush…
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8.9 |
Read Review |
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Swiss Madison SM-1T254 St. Tropez One Piece Toilet Dual…
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8.7 |
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HOROW HR-ST076WD Dual Flush Elongated Toilet with Soft Close…
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8.5 |
Read Review |
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Casta Diva One Piece Toilet Elongated with 17.5″ ADA…
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8.3 |
Read Review |
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St. Tropez One Piece Elongated Toilet Dual Vortex™ Flush,…
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8.1 |
Read Review |
Quick Review For Top 9 Dual Flush Toilet
HOROW T0338W Compact One Piece Toilet, ADA Chair Height 17.3", Elongated Bowl, Dual Flush 0.8/1.28 GPF, White, 12 Inch Rough-In
The HOROW T0338W Compact One Piece Toilet is built for bathrooms where space is limited but comfort is still a priority. This is a chair-height toilet with a seat that sits 17.3 inches from the floor, which makes it easier for you to sit down and stand up. It meets ADA standards, so it works well for seniors, taller adults, or anyone who needs a little extra accessibility in their daily routine.
The design is a compact one-piece model.
It measures 26.6 inches deep, 15 inches wide, and 26 inches high. Because it is one solid piece, there are no cracks or crevices where dirt can hide. You can wipe it down fast, and it looks cleaner overall. The elongated bowl gives you extra room while still fitting into a smaller bathroom layout.
For flushing, this toilet uses a siphon system with a fully glazed 2-inch trapway. That means waste moves through smoothly without clogging easily.
You get two flush options: a 0.8 gallon per flush for liquid waste and a 1.28 gallon per flush for solid waste. This dual flush setup helps you save water over time without sacrificing flushing power. It’s a practical choice if you want to lower your water bill but still need a reliable toilet.
Installation is pretty straight forward. The toilet comes with large side access openings that make it easier to mount it to the floor.
Casta Diva Elongated One Piece Toilet with 17" ADA Comfort Chair Height Seat Compact Toilet for Bathroom Dual Flush 1.1/1.6GPF, 12'' Rough-in, High Efficiency Flush, Standard White Bowl
The Casta Diva Elongated One Piece Toilet with 17″ ADA Comfort Chair Height Seat is a compact toilet built for real-world use. It is designed to be easy to clean, efficient, and comfortable for everyday needs. You get a modern look without the hassle of a separate tank and bowl, since the whole thing is one seamless piece. This means no leaking tank problems and fewer crevices for dirt to hide in.
The flushing system is where this toilet really stands out.
It uses a powerful siphon jet flush with a MAP rating of 1000. That is a high score, meaning it can handle 1000 grams of waste in a single flush without clogging. The fully glazed trapway helps everything move along quietly and smoothly. You won’t here loud gurgling or struggle with plungers, which is a big plus. It gives you a super quiet flush that just works.
Water saving is built in with the dual flush option.
You have two buttons: one uses just 1.1 gallons per flush for liquids, and the other uses 1.6 gallons for solids. This meets the EPA’s WaterSense criteria, so you are conserving water without sacrificing performance. It is a smart way to lower your water bill over time.
Comfort is also a priority. The toilet is 17 inches tall from floor to seat, which matches ADA chair height standards.
Casta Diva Elongated One Piece Toilet with 17" ADA Comfort Chair Height Seat Compact Toilet for Bathroom Dual Flush 1.1/1.6GPF, 12'' Rough-in, Dual Flush Toilet Button Golden
The Casta Diva Elongated One Piece Toilet with 17″ ADA Comfort Chair Height Seat is a solid choice for anyone wanting a modern, functional bathroom upgrade. This is a skirted one-piece design, meaning the tank and bowl are molded together. That gets rid of the gap where dust and grime usually hide, plus it eliminates the common leaking tank problem you see on two-piece models.
Cleaning is much simpler.
You get a compact elongated bowl that measures 27.17 inches deep, 14.37 inches wide, and 25.39 inches tall. The seat height is 17 inches, which meets ADA standards. This makes sitting down and standing up easier for adults of all ages, from kids to older family members. No more struggling to get up from a low toilet.
Performance is strong here. The toilet uses a powerful siphon flush system with a MAP rating of 1000 grams.
That means it handles waste effectively without clogging. The fully-glazed trapway helps things slide through smoothly, and the flush is surprisingly quiet. You won’t hear a loud, rushing noise every time you use it.
Water saving is built in with a dual-flush button. You get two options: 1.1 gallons per flush for liquids and 1.6 GPF for solids. This meets EPA WaterSense criteria, so you are conserving water without sacrificing performance.
BayRoll One Piece Sleek Modern Toilet, ADA Chair Seat Height 17", Dual Flush 0.9/1.28 GPF, MAP 1000g, 12" Rough-In, Compact Fully Skirted Round Toilet for Bathrooms Soft Close Seat
The BayRoll One Piece Sleek Modern Toilet is built around practical features that aim to make your daily routine easier and more comfortable. It is a compact, fully skirted round toilet with a 17-inch chair height, designed to meet ADA standards.
This height is especially helpfull for seniors or taller users, as it reduces strain on your knees and back when sitting down or standing up.
This toilet uses a dual flush system with two options: 0.9 gallons per flush for liquid waste and 1.28 GPF for solid waste. You get to choose the right amount of water for each flush, which helps lower your water bill without sacrificing performance. Speaking of performance, it has a MAP rating of 1000 grams.
That means it can handle up to 2.2 pounds of solid waste in a single flush. The 360-degree full-cycle siphon flush is quiet but powerfull, leaving the bowl clean after every use.
Cleaning is where this model really stands out. The fully skirted design means there are no exposed pipes or hard-to-reach crevices. You can simply wipe down the exterior without any trouble. The soft-close seat closes silently and gently, so you wont wake anyone up at night.
St. Tropez One Piece Elongated Toilet Dual Vortex Flush 1.1/1.6 gpf with 10" Rough In
The St. Tropez One Piece Elongated Toilet Dual Vortex Flush 1.1/1.6 gpf with 10″ Rough In is a practical choice if you are updating your bathroom and want a unit that combines straightforward function with a clean look. This toilet is built around its dual flush system. You get two buttons on top. One gives you a light flush at 1.1 gallons per flush for liquid waste, saving water. The other provides a full flush at 1.6 gallons per flush for solid waste.
This gives you control over water usage without guessing. The toilet uses a 10 inch rough in. That refers to the distance from the finished wall to the center of the floor flange. Make sure your plumbing matches this before installing. The bowl is elongated, which means it offers a bit more room and comfort compared to a round bowl. It is a standard height toilet, sitting between 15 and 17 inches tall.
This height is designd to be comfortable for most people, from kids to adults, making sitting down and standing up a bit easier on the legs. The material is a durable, non-porous ceramic that resists scratches. This helps it hold up to daily cleaning and regular use without showing wear quickly. The whole unit is fully glazed, including the trapway inside. The glazed surface helps prevent clogs by letting waste and water flow smoothly.
Swiss Madison SM-1T254 St. Tropez One Piece Toilet Dual Tornado Flush 0.8/1.28 GPF with Soft Closing Seat, Comfort Height
The Swiss Madison SM-1T254 St. Tropez One Piece Toilet combines a sleek design with practical features for everyday use. It comes with a Dual Tornado Flush system that uses a cyclonic rinsing action to scrub the bowl clean. This means superior waste disposal with a minimum of 1.1 gallons per flush for water efficiency, and a maximum flush capacity of 1.6 gallons when needed.
It is a good balance between saving water and getting the job done.
This toilet has a standard 12-inch rough-in, so it should fit into most existing bathroom setups without major changes. The elongated bowl provides extra room and comfort compared to round bowls. The seat height is standard, between 15 and 17 inches, which makes sitting down and standing up easier for people of all ages and body types.
It is designed with ergonomic considerations in mind.
The ceramic material is durable, non-porous, and scratch resistant. This helps the toilet withstand routine use and stay looking clean over time. The fully glazed and skirted trapway hides the plumbing for a cleaner, more streamlined look. It also prevents clogs and keeps water flowing freely.
HOROW HR-ST076WD Dual Flush Elongated Toilet with Soft Close Seat, High-Efficiency Supply, Standard Bathroom Toilet 12" Rough-In, White Finish
The HOROW HR-ST076WD Dual Flush Elongated Toilet with Soft Close Seat is designed to be a practical and straightforward upgrade for your bathroom. It focuses on easy cleaning, water efficiency, and reliable performance without any fuss.
This toilet uses a dual flush system with 1.1 and 1.6 gallons per flush. On average, it uses just 1.28 gallons per flush. Compared to older 3.5-gallon toilets, this can save you up to 16,500 gallons of water each year.
You dont have to worry about weak flushes either. The MAP 800g rating means the siphon flush is quiet and powerful, clearing waste completely. The fully glazed 2-inch trapway stops clogs, and the flapper-free design means no leaks. Its a simple system that just works.
Cleaning this toilet is much easier than standard models. The fully skirted trapway gives it a smooth, one-piece look with no hard-to-reach corners or grooves. The materials also help it stay clean longer.
When you do need to clean, you can easily wipe down every surface. The soft-close seat is a nice touch, it lowers silently and prevents slamming. The seat is made from durable PP material and uses a stainless steel hinge. If you ever need to remove it for a deep clean or to tighten it, it comes off easy.
Installing this toilet is simpler than you might think. There are two big opening holes on the side that make it easier to fix the toilet to the floor.
Casta Diva One Piece Toilet Elongated with 17.5" ADA Height Comfort Chair Seat Compact Modern Toilets for Bathroom, Dual Flush High Efficiency 1.0/1.28 GPF & MAP 1000g, 12'' Rough-in, White
The Casta Diva One Piece Toilet Elongated is a modern toilet designed to make your daily routine more comfortable and efficient. It starts with a 17.5 inch comfort height, which is ADA compliant. This chair height makes sitting down and standing up much easier, especially if you have mobility concerns or are looking for a toilet that feels more like a regular seat.
The elongated bowl also gives you extra room, adding to the overall comfort.
When it comes to flushing, this toilet is seriously powerful. It uses a siphon jet system with a MAP rating of 1000 grams. That means it can handle a lot of waste in one go without clogging. The fully glazed trapway is wide, so everything flows out smoothly. It’s also very quiet, which is a nice bonus.
You get a reliable, one-flush clean every time, and you won’t have to worry about blockages.
Water saving is a big deal here. The dual flush system lets you choose between 1.0 gallons per flush for liquids and 1.28 gallons for solids. This meets EPA WaterSense standards, so you are saving a lot of water over time. Compared to an older 3.5 gallon toilet, you could save up to 16,500 gallons per year.
St. Tropez One Piece Elongated Toilet Dual Vortex™ Flush, Black Hardware
The St. Tropez One Piece Elongated Toilet Dual Vortex™ Flush, Black Hardware is built around a simple idea: making your daily routine easier and more comfortable. It is a straightforward bathroom fixture that focuses on function and clean design.
You get a dual flush system here, which gives you real control over water usage. There are two buttons. One button uses a low 1.1 gallons per flush for liquid waste. The other button uses a high 1.6 gallons per flush for solid waste.
This choice helps you save water without sacrificing performance. The Dual Vortex™ flush technology is designed to be powerful and quiet, moving waste effectively with each use.
The bowl is elongated, which means you have extra room and more comfort compared to a round bowl. It sits at a standard height, between 15 and 17 inches. This height is ergonomically sound, making it easier for people of all ages and body types to sit down and stand up.
The rough-in is a standard 12 inches, so it should fit most existing plumbing setups without any trouble.
Durability is a key part of this toilet. It is made from a non-porous ceramic that is scratch-resistant. This means the surface will not absorb stains or odors, and it will hold up well against daily wear and tear. Cleaning is also much simpler because the ceramic is smooth and non-porous.
Dual Flush Toilet Buying Guide
Saving water and preventing clogs is easier with a modern dual flush toilet. But stepping into a showroom can feel overwhelming. You see different bowl shapes, handle positions, and confusing specs. Don’t worry. This guide breaks down the key factors so you can pick the right one for your home. We’ll skip the fluff and get straight to what matters.
Flush Performance and Trapway Size
Performance is everything. A weak flush means double-flushing and frustration. Look for a model with a fully glazed trapway. This prevents waste from sticking inside. The trapway diameter matters too. Anything 2 inches or wider handles solid waste better. Do you have an older home with cast iron pipes? Go for a wider trapway to reduce clog risks. Some toilets use a pressure-assisted flush for extra power, but standard gravity models work fine for most homes.
Bowl Shape and Height
Round bowls save space in tight bathrooms. They measure about 16.5 inches from the tank to the bolt caps. Elongated bowls offer more comfort and are standard in modern homes. They need about 2 more inches of clearance in front. For height, comfort height toilets sit 17 to 19 inches off the floor. This is like a standard chair. It’s easier on your knees and back. Standard height is around 15 inches. Taller families often prefer comfort height models.
Flush Button Location and Design
Dual flush buttons come in two main styles: top-mounted or side-mounted. Top buttons sit on the tank lid. Side buttons are on the front of the tank. Top buttons are easier to reach and more intuitive. But side-mounted buttons can look sleeker in a modern bathroom. Some people accidentally push the wrong button at first. That’s normal. You’ll get used to it. Check that the buttons feel solid and not flimsy.
Water Efficiency and Rebates
Standard dual flush toilets use 1.6 gallons for a full flush and around 1.1 for a half flush. Some high-efficiency models use even less. This saves thousands of gallons per year. Check your local water utility for rebates. Many offer money back for buying WaterSense certified toilets. That’s free cash for being smart about water use. Just keep the receipt.
Installation and Rough-In Size
Measure from the wall behind the toilet to the center of the floor bolts. That’s your rough-in size. Most homes have 12 inches. Some older homes use 10 or 14 inches. Get this wrong and your toilet won’t fit. Also check if you need a new wax ring or supply line. Most new toilets include these parts. But double-check before you start drilling holes in your floor.
Frequently Asked Questions About Dual Flush Toilet
How does a dual flush toilet work?
A dual flush toilet has two buttons or a split handle. One button is for liquid waste. It uses less water, usually around 0.8 gallons. The other button is for solid waste. That uses more water, often about 1.6 gallons. You choose the right flush based on what you need. This helps save water over time.
Does a dual flush toilet save money on my water bill?
Yes, it can. Because you use less water for liquid flushes, you use less water overall. Over a year, that adds up. You might see a lower water bill. The savings depend on how much you use the toilet. But most people notice a difference.
Are dual flush toilets hard to install?
Not really. If you are replacing an old toilet, it is similar to installing any new one. You need basic tools like a wrench and a screwdriver. The instructions are usually clear. You can do it yourself if you are handy. But you can always call a plumber if you prefer.
Do dual flush toilets clog more often?
Not usually. Modern desgins are made to handle waste well. The larger flush gives enough power for solids. The smaller flush works fine for liquids. Clogs can happen if you flush too much paper. But that is true for any toilet. Just use reasonable amounts of toilet paper.
What should I look for when buying a dual flush toilet?
Check the flush performance rating. Look for a model that clears waste with one flush. Also consider the bowl shape. Elongated bowls are more comfortable. Round bowls take up less space. And make sure the height works for you. Comfort height is a good option for many people.
Is a dual flush toilet worth it?
Yes, for most homes. It helps you use less water. That is good for the environment and your wallet. It is a simple upgrade that makes a difference. You will get used to the two buttons quickly. It is a smart choice for a modern bathroom.
Final Thoughts
With these smart water-saving toilets, your bathroom becomes both efficient and eco-friendly. You save money on your water bill while helping the environment. The dual-flush design is simple to use. Just push the right button for liquid waste or the left button for solid waste. It’s that easy. No complicated settings or confusing controls. Plus, the modern look fits any bathroom style. You get a clean, fresh space that works well every day. Your family will appreciate the lower water usage. And you can feel good about making a responsible choice. These toilets are built to last, so you won’t need to replace them soon. They also clean easily with standard products. No special care required. Just install it and forget about it. Your bathroom stays functional and planet-friendly. That’s a win-win for everyone.
When you choose a dual flush toilet, you pick a prodcut that balances performance with savings. It cuts water waste without sacrificing power. The strong flush handles waste effectivly, while the light flush uses minimal water for liquids. You get reliable results every time. This toilet is a smart addition to any home. It helps reduce your carbon footprint without extra effort. And the cost savings add up over time. So if you want a practical, no-fuss solution, this is it. Your bathroom upgrade will pay off for years to come. Enjoy the peace of mind that comes with a smarter, greener choice.