10 Best TOTO One Piece Toilets 2026 in the United States

The TOTO WASHLET+ Aquia IV is a one-piece, elongated toilet designed to offer a high-tech and hygienic bathroom experience. Its oval bowl shape provides a comfortable seating area while fitting well in many bathroom layouts. With dual flush options (1.28 and 0.9 gallons per flush), it balances water efficiency and cleaning power, helping save water without sacrificing performance. The toilet stands about 28.38 inches tall, a standard height that should be comfortable for most users.

Installation is floor-mounted, typical for this category, and the concealed water supply and power cord give it a clean, modern look. One of its standout features is the S7A bidet seat with auto flush, which offers hands-free flushing and advanced cleaning functions like PREMIST and EWATER+ to keep the bowl and wand cleaner, reducing the need for harsh chemicals. This makes it a great choice for anyone wanting an all-in-one toilet and bidet system.

This unit weighs 118 pounds, which might make installation a bit challenging without assistance. The seat is plastic, a common material that is less premium-feeling than some alternatives. If you're looking for a modern, water-saving toilet with smart features and easy cleaning, this product fits well, especially for those open to a tech upgrade in the bathroom.

The TOTO NEOREST AS Dual Flush Toilet is a high-end option in the one-piece toilet category, offering numerous advanced features. Its bowl shape is designed for optimal cleaning performance, enhanced by the TORNADO FLUSH system, which provides powerful 360° cleaning to reach all parts of the bowl. The dual flush functionality is highly efficient, utilizing either 1.0 or 0.8 GPF, contributing to water conservation.

The integrated bidet seat includes personal cleansing features, such as a warm water spray with oscillating and pulsating options, an instantaneous water heater, and a heated seat with adjustable temperature control. The PREMIST feature mists the bowl before each use to help minimize waste sticking to the surface, and EWATER+ technology keeps the wand and bowl clean after use, promoting hygiene. The universal height and ADA compliance make it accessible for a range of users, while the seamless seat design and automatic air deodorizer enhance comfort and cleanliness.

Installation might be more complex due to the advanced features, and the product's weight of 97 pounds may require additional support during setup. The remote control can be useful but may take time for users to become accustomed to its multifunctional settings. This toilet is well-suited for users looking for a luxurious, high-tech bathroom experience with efficient flush performance and extensive comfort features.

The TOTO MS900CUMFG#01 Neorest NX1 Electronic Dual Flush Toilet offers a blend of luxury and functionality. Its elongated bowl shape provides added comfort, while the dual flush system allows for efficient water usage with 1.0 GPF and 0.8 GPF options. The adjustable heated seat and customizable spray settings ensure a personalized and comfortable experience.

Plus, the auto open/close lid and flush functions make it both convenient and hygienic, especially for households that prioritize cleanliness. Additionally, the automatic air purifying system helps to control odors, adding to the bathroom experience. The toilet's height and trapway design are standard, making it accessible and relatively easy to maintain.

However, at 157.5 pounds, this model is quite heavy, which might make installation a bit challenging and could potentially require professional help. The modern design, finished in Cotton White, fits well in contemporary bathroom settings. While its price point and advanced features cater to a more premium market, this product is ideal for those looking for high-end features and willing to invest in a sophisticated toilet system.