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10 Best Kohler One Piece Toilets 2026 in the United States

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Our Top Picks

#1

Winner

KOHLER K-5401-PA-0 Veil One-Piece Elongated Dual-Flush Intelligent Toilet, Smart Bidet Toilet, White

The Kohler K-5401-PA-0 Veil is a sleek one-piece smart toilet designed for users who want both comfort and advanced hygiene features. Its elongated bowl shape provides extra room, making sitting more comfortable. The Comfort Height design is helpful for adults who find standard toilets too low, easing the process of sitting and standing. Made from durable porcelain with a smooth white finish, it fits well in most modern bathrooms.

This toilet excels in cleanliness and convenience thanks to its built-in bidet with adjustable spray settings including water pressure and temperature, plus front and rear wash modes. The stainless steel bidet wand cleans itself automatically using UV light and electrolyzed water, which helps reduce maintenance. It also offers a heated seat with customizable warmth and an automatic deodorizer for added freshness.

The tankless design connects directly to the water supply, saving space and allowing for a contemporary look. Installation is floor-mounted and comes with all necessary components. Because it incorporates electronic features like a power cord and remote control, setup might be a bit more complex than a regular toilet and requires access to electricity. Buyers should consider the added complexity and cost compared to standard one-piece toilets. This model is an excellent choice for anyone looking for an intelligent toilet that combines comfort, cleanliness, and modern technology in one compact unit.

#2

KOHLER K-77795-0SG Eir Comfort Height One-Piece Elongated, Dual-Flush, Smart Toilet with Bidet Built In, White with Sunrise Gold Trim

Rating
9.4
Flush Performance

Most important from
10 reviews

Flush Performance
Compared to other high-end models, the flush and seat heating could be better, making it feel less impressive for the price.

The Kohler 77795-0SG Eir Toilet is a compact, streamlined one-piece toilet designed for modern bathrooms. Its elongated bowl shape offers added room and comfort, making it a good choice for those who value extra space. The Comfort Height feature is particularly beneficial for adults, as it provides chair-height seating that makes sitting down and standing up easier. This aspect can be especially appreciated by elderly individuals or those with mobility issues.

The dual flush system is efficient, allowing users to choose between 0.8 or 1.0 gallons per flush, which helps in conserving water without compromising on performance. The stainless steel wand with adjustable spray functions adds a personalized cleansing experience, enhancing hygiene and comfort. Made from vitreous china, the toilet is durable and has a smooth finish. The white color with Sunrise Gold Trim gives it a stylish and elegant appearance, fitting well in a modern bathroom setting.

However, weighing 116.8 pounds, it may pose a challenge during installation and might require professional help. Additionally, while the toilet has integrated cleansing features, the noise level might be a concern for some users, especially in quiet homes. This toilet is well-suited for those looking for a modern, comfortable, and hygienic option but may need assistance with installation due to its weight.

Rating
9.4
Flush Performance

Most important from
10 reviews

Flush Performance
Compared to other high-end models, the flush and seat heating could be better, making it feel less impressive for the price.
#3

KOHLER K-77795 Eir Comfort Height One-Piece Elongated, Dual-Flush, Smart Toilet with Bidet Built In, White

The Kohler K-77795 Eir Comfort Height One-Piece Toilet is a smart, all-in-one bathroom fixture designed to combine comfort and hygiene. Its elongated (oblong) bowl shape offers more seating space, which is great for everyday use. The Comfort Height feature places the seat at chair-level, making it easier to sit and stand for most adults, a big plus for comfort. It uses vitreous china, a durable and easy-to-clean material with a smooth white finish.

The dual-flush system provides two water-saving options—0.8 and 1.0 gallons per flush—helping reduce water usage without sacrificing performance. The integrated bidet offers customizable warm water cleansing with adjustable spray settings and a heated seat, which adds luxury and promotes better hygiene. Additional features like a self-cleaning wand with UV light, warm-air drying, and automatic deodorization enhance the user experience. Installation is floor-mounted and fairly straightforward but may require professional help due to the smart features and plumbing connections.

Noise during flushing and bidet use is minimal, thanks to efficient design. This toilet offers advanced tech and comfort but comes at a higher price point and may be more complex to install than standard models. It is well suited for users looking for a modern, hygienic upgrade with smart features, especially in households valuing comfort and water efficiency.

Buying Guide for the Best Kohler One Piece Toilets

Choosing the right one-piece toilet can significantly enhance the comfort and functionality of your bathroom. One-piece toilets are known for their sleek design, ease of cleaning, and often more modern look compared to two-piece toilets. When selecting a one-piece toilet, it's important to consider several key specifications to ensure you get the best fit for your needs and preferences.
Bowl ShapeThe bowl shape of a toilet can affect both comfort and space utilization. There are generally two types: elongated and round. Elongated bowls are more comfortable for most adults due to their oval shape, but they take up more space. Round bowls are more compact, making them ideal for smaller bathrooms. Choose an elongated bowl if comfort is your priority and you have enough space. Opt for a round bowl if you need to save space or have a smaller bathroom.
Flush PerformanceFlush performance determines how effectively the toilet clears waste. This is often measured in terms of gallons per flush (GPF). Modern toilets typically use 1.28 GPF or 1.6 GPF. A lower GPF is more water-efficient and environmentally friendly, but you want to ensure it still provides a powerful flush. If you are environmentally conscious or live in an area with water restrictions, a 1.28 GPF toilet is a good choice. If you prioritize a strong flush and don't have water usage concerns, a 1.6 GPF toilet might be better.
HeightToilet height can impact comfort, especially for taller individuals or those with mobility issues. Standard height toilets are around 15 inches from the floor to the seat, while comfort height (or chair height) toilets are about 17-19 inches. Comfort height toilets are easier to sit down on and stand up from, making them a good choice for older adults or anyone with knee or back problems. Standard height toilets might be preferable for shorter individuals or children.
Material and FinishThe material and finish of a toilet affect its durability and ease of cleaning. Most toilets are made from vitreous china, which is durable and has a smooth, glossy finish that resists stains and is easy to clean. Some toilets come with additional coatings that further enhance cleanliness by preventing bacteria and mold growth. If you want a low-maintenance toilet, look for one with an advanced finish or coating. For general use, vitreous china is a reliable and common choice.
Noise LevelThe noise level of a toilet can be an important consideration, especially if the bathroom is near living areas or bedrooms. Some toilets are designed with quieter flush mechanisms to minimize noise. If you are sensitive to noise or have a bathroom close to sleeping areas, look for a toilet that is specifically marketed as having a quiet flush. For bathrooms that are more isolated, noise level might be less of a concern.
Ease of InstallationEase of installation can save you time and money, especially if you plan to install the toilet yourself. One-piece toilets are generally heavier and more cumbersome to install than two-piece models, but they often come with straightforward installation instructions. If you are a DIY enthusiast, look for a toilet with clear instructions and all necessary hardware included. If you prefer professional installation, consider the additional cost and complexity.

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