7 Best One-Piece TOTO Toilets for 2026: Expert-Tested Selections
Choosing the best one piece toto toilet can transform your bathroom into a modern, easy-to-clean sanctuary. Unlike two-piece models that have tricky crevices where dust and grime gather, one-piece toilets offer a seamless, sleek look that makes maintenance a breeze. TOTO is widely considered the industry gold standard, known for advanced flushing systems and high-quality ceramic glazes that keep your bowl sparkling. Whether you are looking for advanced bidet features or simply want a reliable, high-efficiency fixture, this guide will help you find the perfect fit for your home.
List of 7 Best One Piece Toto Toilet
| Image | Title | Best For | Link |
|---|---|---|---|
 |
HOROW Elongated One-Piece Toilet | Compact modern design and high-efficiency flushing for small spaces. | View on Amazon |
 |
TOTO TCU102#01 One-Piece Toilet | Classic high-performance reliability for modern home renovations. | View on Amazon |
 |
TOTO UltraMax II One-Piece Toilet | Powerful tornado flush system with premium CEFIONTECT glaze. | View on Amazon |
 |
TOTO Nexus 1G WASHLET+ Toilet | Integrated bidet system with ultra-high efficiency 1.0 GPF performance. | View on Amazon |
 |
TOTO WASHLET C5 Bidet Seat | Upgrade existing toilets with premium bidet comfort and cleaning. | View on Amazon |
 |
Lordear One-Piece Dual Flush Toilet | Economical choice with dual-flush technology and comfort height. | View on Amazon |
 |
Lordear One-Piece Comfort Height Toilet | Durable 17-inch chair height design for accessibility and comfort. | View on Amazon |
Our Top 7 Best One Piece Toto Toilet Reviews – Expert Tested & Recommended
1. HOROW Elongated One-Piece Toilet
The HOROW elongated one-piece toilet combines a sleek, modern aesthetic with high-efficiency performance. It uses just 1.28 gallons per flush and features a powerful siphon jet that effectively prevents clogs, making it a reliable addition to any busy household.
Key Features That Stand Out
✓ Space-saving compact design fits smaller bathrooms perfectly.
✓ Fully skirted base makes cleaning fast and effortless.
✓ Powerful siphon jet flush handles waste efficiently on every use.
✓ High-quality anti-stick glaze keeps the bowl cleaner for longer.
Why We Recommend It
We love this toilet because it manages to pack high-end performance into a footprint that works for almost any bathroom. Its seamless design is not just beautiful; it is incredibly practical for anyone who hates scrubbing hard-to-reach porcelain corners.
Best For
Homeowners looking to upgrade a small powder room or master bathroom with a modern, low-maintenance fixture.
Pros and Cons at a Glance
2. TOTO TCU102#01 One-Piece Toilet
The TOTO TCU102#01 is a classic choice for those who value long-term reliability. Its high-performance design is synonymous with the TOTO brand, offering a consistent flush and a beautiful cotton white finish that brightens up any bathroom space.
Key Features That Stand Out
✓ Timeless design that complements various interior styles.
✓ Sturdy, high-quality ceramic construction for longevity.
✓ Smooth surface finish is resistant to staining and wear.
✓ Dependable flush performance that lasts for years.
Why We Recommend It
If you want a “set it and forget it” toilet, this is the one. It represents the foundation of TOTO’s reputation for excellence, providing a robust solution for homeowners who prefer a traditional, high-quality fixture over fancy extras.
Best For
Renovation projects and homeowners who want a classic, durable TOTO product that will stand the test of time.
Pros and Cons at a Glance
3. TOTO UltraMax II One-Piece Toilet
The TOTO UltraMax II is a standout performer, featuring the powerful Tornado Flush system. This one-piece toilet is designed to be WASHLET+ ready, meaning you can easily integrate a bidet seat later on, making it a smart, future-proof purchase.
Key Features That Stand Out
✓ Tornado Flush system provides a powerful centrifugal rinse.
✓ CEFIONTECT glaze prevents waste from sticking to the bowl.
✓ WASHLET+ ready design allows for clean, seamless bidet integration.
✓ Ergonomic elongated bowl for added seating comfort.
Why We Recommend It
This model is the perfect bridge between a standard toilet and a high-tech smart toilet. The Tornado Flush is notably effective and quiet, and the CEFIONTECT glaze makes an actual, visible difference in how clean the toilet stays between scrubbings.
Best For
Those who want professional-grade flushing technology and the ability to add a bidet seat down the road.
Pros and Cons at a Glance
4. TOTO Nexus 1G WASHLET+ Toilet
The TOTO Nexus 1G is the ultimate integrated system for those who want to jump straight into luxury. This unit comes with a built-in WASHLET bidet seat and uses a ultra-efficient 1.0 GPF flush, providing a premium experience while saving significant water.
Key Features That Stand Out
✓ Integrated bidet system hides all cords and water supplies.
✓ PREMIST technology helps waste slide off the bowl easily.
✓ EWATER+ wand cleaning keeps the bidet spray hygienic.
✓ Ultra-high 1.0 GPF efficiency for maximum water savings.
Why We Recommend It
The integrated design is stunning; you won’t see any messy external bidet hoses or power cords. It looks like a high-end luxury fixture, and the cleaning technology ensures that maintenance remains minimal even with its high-efficiency design.
Best For
Those who want an all-in-one luxury bathroom experience with the cleanest aesthetics possible.
Pros and Cons at a Glance
5. TOTO WASHLET C5 Bidet Seat
If you already have a great toilet and want to upgrade the experience, the TOTO WASHLET C5 is a game-changer. This electronic bidet seat offers a heated surface, customizable water pressure, and advanced cleaning cycles to turn any compatible elongated toilet into a modern spa.
Key Features That Stand Out
✓ Adjustable warm water and pressure settings for comfort.
✓ Heated seat with consistent temperature control.
✓ Built-in air deodorizer creates a fresher bathroom environment.
✓ PREMIST and EWATER+ technology for superior hygiene.
Why We Recommend It
This is the easiest way to get that high-end TOTO experience without replacing your entire plumbing setup. It’s packed with user-friendly settings that make a massive difference in your daily routine.
Best For
Those who want to add luxury bidet features to their current elongated toilet.
Pros and Cons at a Glance
6. Lordear One-Piece Dual Flush Toilet
The Lordear one-piece dual flush toilet offers a great mix of comfort and efficiency. It features a comfort height seat and an advanced dual-flush system that gives you the choice between a full or partial flush to conserve water throughout the day.
Key Features That Stand Out
✓ Dual-flush system helps significantly reduce water consumption.
✓ Comfort chair height makes sitting and standing much easier.
✓ Skirted, minimalist aesthetic fits modern design schemes.
✓ Advanced vortex siphonic flushing for strong, quiet performance.
Why We Recommend It
We appreciate the practical approach here. You get the benefits of a modern one-piece toilet, like easier cleaning, combined with the eco-friendly advantage of a dual-flush button, all at a competitive price point.
Best For
Value-conscious homeowners seeking a reliable, eco-friendly, and accessible toilet design.
Pros and Cons at a Glance
7. Lordear One-Piece Comfort Height Toilet
The Lordear 17-inch comfort height toilet is designed specifically for ease of use. This model combines a durable ceramic build with a modern one-piece aesthetic, ensuring you get a sturdy, reliable toilet that provides extra height for those who need it.
Key Features That Stand Out
✓ Comfortable 17-inch chair height for easier mobility.
✓ High-strength ceramic supports up to 880 lbs for durability.
✓ Efficient siphonic vortex flush uses only 1.28 GPF.
✓ Seamless one-piece construction for a clean, modern look.
Why We Recommend It
We like this model because it prioritizes ergonomics without sacrificing the clean, modern aesthetic everyone wants. The height is a major factor for accessibility, making this a top recommendation for multi-generational homes.
Best For
Tall individuals or seniors who appreciate a taller seat that minimizes the effort required to sit down or stand up.
Pros and Cons at a Glance
Complete Buying Guide for Best One Piece Toto Toilet
Essential Factors We Consider
When selecting the best one piece toilet, we prioritize flushing power, ease of maintenance, and the quality of the ceramic. TOTO models consistently rank high because they combine advanced glazing—like their proprietary CEFIONTECT—with superior water movement systems like the Tornado Flush. We also look at seat height and bowl shape to ensure the unit provides maximum long-term comfort for the average user.
Budget Planning
While one-piece toilets often carry a higher price tag than two-piece versions, they offer significant value in terms of longevity and reduced cleaning time. If you are on a budget, consider models that are “WASHLET+ ready.” This allows you to purchase the base toilet now and upgrade with a bidet seat later, spreading out your investment while still enjoying a premium, modern bathroom aesthetic today.
Final Thoughts
Upgrading to a one-piece toilet is one of the most effective ways to modernize your bathroom while simplifying your weekly chores. By choosing a reputable brand like TOTO, you are investing in reliable technology that reduces clogs and keeps your bathroom cleaner. Choose the model that best fits your space and comfort requirements, and you will enjoy the benefits for many years to come.
Frequently Asked Questions
Q: Why should I choose a one-piece toilet over a two-piece?
A: One-piece toilets are seamless, which eliminates the gap between the tank and the bowl. This makes them much easier to clean because there are no crevices to collect dust and grime.
Q: What does “WASHLET+ ready” mean?
A: This means the toilet is specifically engineered to hide the bidet seat’s water supply and power cord within the toilet body itself, resulting in a cleaner, more integrated look.
Q: Do one-piece toilets flush as well as two-piece models?
A: Yes, and often better. Many TOTO one-piece toilets use high-tech flushing systems like the Tornado Flush, which is specifically designed for high efficiency and clog prevention.
Q: Is it hard to install a one-piece toilet?
A: One-piece units are heavier than two-piece ones, so they can be a bit more challenging to maneuver into place during installation. We highly recommend having a friend assist you or hiring a professional.
Investing in the best one piece toto toilet is a great way to elevate your home comfort and simplify bathroom maintenance. With various options ranging from standard high-performance models to integrated smart bidet systems, there is a perfect fit for every bathroom layout and budget. We hope this guide has helped you narrow down your choices so you can enjoy a cleaner, more efficient, and more luxurious daily routine.
William Lee is a home improvement writer and smart-living enthusiast at SmartHomeBath.com. He focuses on smart bathrooms, modern home upgrades, and practical DIY tips that help homeowners create cleaner, safer, and more efficient spaces. With a passion for technology and everyday comfort, William simplifies complex ideas into easy, useful advice anyone can follow.
