One Piece vs Two Piece Toilets: Which is Better in 2024?

As we enter 2024, the toilet industry continues to evolve, offering consumers a wide range of options to choose from. Among the most significant decisions homeowners face is whether to opt for a one-piece or two-piece toilet. Both designs have their unique advantages and drawbacks, and understanding the differences between them is crucial in making an informed choice.

This comprehensive guide will delve into the intricacies of one-piece and two-piece toilets, exploring their features, benefits, and drawbacks. We’ll also examine the latest trends and innovations in the toilet industry to help you make the best decision for your home or commercial space.

Understanding the Basics

Before we dive into the comparison, let’s define the key terms:

One-Piece Toilet: A one-piece toilet is constructed from a single, seamless unit that combines the tank and bowl into a single, integrated piece.

One-Piece Toilet

Two-Piece Toilet: A two-piece toilet consists of two separate components – the tank and the bowl – that are joined together during installation.

Two-Piece Toilet

Factors to Consider

When deciding between a one-piece and a two-piece toilet, there are several factors to consider:

Aesthetics and Design

  • One-Piece Toilets: Known for their sleek, modern appearance, one-piece toilets offer a seamless, streamlined look that can enhance the visual appeal of your bathroom. Their integrated design creates a smooth, easy-to-clean surface, making them a popular choice for contemporary and minimalist bathroom styles.
  • Two-Piece Toilets: While two-piece toilets may not have the same seamless look as their one-piece counterparts, they offer a wider range of design options, allowing homeowners to mix and match tanks and bowls to create a unique aesthetic. Two-piece toilets can be a better fit for more traditional or eclectic bathroom designs.

Installation and Maintenance

  • One-Piece Toilets: Due to their single, integrated construction, one-piece toilets are generally more straightforward to install. They require less alignment and adjustment during the installation process. However, their monolithic design can make repairs and maintenance more challenging, as the entire unit needs to be replaced if any part becomes damaged.
  • Two-Piece Toilets: Two-piece toilets are typically easier to maintain and repair because their separate components allow for individual parts to be replaced as needed. This can save homeowners money in the long run, as only the damaged component needs to be replaced rather than the entire unit. However, the installation process can be more complex, as the tank and bowl must be properly aligned and secured during assembly.

Cleaning and Hygiene

  • One-Piece Toilets: The seamless design of one-piece toilets makes them easier to clean, as there are fewer nooks and crannies for dirt, grime, and bacteria to accumulate. The smooth, continuous surface minimizes the potential for mold and mildew growth, contributing to better hygiene and a cleaner overall appearance.
  • Two-Piece Toilets: Two-piece toilets have more crevices and joints where dirt and grime can collect, making them slightly more challenging to keep clean. The connection point between the tank and bowl can also be a potential area for mold and mildew growth if not properly maintained.

Water Conservation

  • Both one-piece and two-piece toilets can be designed with water-saving features, such as dual-flush systems or low-flow options, to promote water conservation. The choice between a one-piece or two-piece toilet has little impact on water efficiency, as this aspect is primarily determined by the specific model and its flushing technology.


  • One-Piece Toilets: Generally, one-piece toilets tend to be more expensive than their two-piece counterparts. This higher cost can be attributed to their integrated design, which requires more complex manufacturing processes.
  • Two-Piece Toilets: Two-piece toilets are typically more budget-friendly, making them a popular choice for homeowners looking to save money upfront. However, it’s important to remember that the long-term maintenance costs may be higher if individual components need to be replaced more frequently.

Comparing the Top Brands and Models for 2024

To help you make an informed decision, let’s compare some of the top one-piece and two-piece toilet models from leading brands in 2024:

One-Piece Toilets

BrandModelKey FeaturesProsCons
TOTONeorest NX2– Integrated toilet and bidet functions
– Automatic open/close lid
– Heated seat
– Automatic flushing
– Rimless design for easier cleaning
– High-tech and luxurious features
– Excellent hygiene and cleaning
– Water-saving dual-flush system
– Very expensive
– Complex installation and maintenance
American StandardStudio Concealed Trapway– Concealed trapway for easier cleaning
– Skirted design for a sleek look
– WaterSense certified (1.28 GPF)
– Stylish and modern appearance
– Easy to clean
– Water-efficient
– Limited color options
– Mid-range price
KohlerSanta Rosa Comfort Height– Comfort Height elongated bowl
– AquaPiston flushing technology
– Skirted design for a streamlined look
– Comfortable seating position
– Powerful and efficient flushing
– Standard features
– Limited warranty

Two-Piece Toilets

BrandModelKey FeaturesProsCons
KohlerMemoirs Stately– Elongated bowl for added comfort
– Canister flushing design
– Comfort Height seating
– Classic, elegant design
– Comfortable seating
– Powerful flushing
– Fewer color options
– Standard features
American StandardChampion 4– 4-inch piston-assisted flushing system
– Everclean surface for easier cleaning
– WaterSense certified (1.28 GPF)
– Exceptional flushing power
– Easy to clean
– Water-efficient
– Basic design
– Loud flushing sound
TOTODrake II– Double Cyclone flushing system
– Elongated bowl for comfort
– CeFiONtect ceramic glaze for easy cleaning
– Powerful and efficient flushing
– Comfortable seating
– Easy to clean
– Limited color options
– Mid-range price

These comparisons provide an overview of popular models from leading brands, highlighting their key features, pros, and cons. It’s important to note that specific model availability and pricing may vary by region and retailer.

Innovations and Trends in the Toilet Industry

The toilet industry is continuously evolving, with manufacturers introducing new technologies and features to enhance user experience and sustainability. Here are some notable innovations and trends to watch for in 2024:

  1. Smart Toilets: The integration of smart technology into toilets is gaining traction. Smart toilets can offer features like automatic flushing, self-cleaning functions, and even voice controls or app connectivity for customized settings.
  2. Water-Saving Technologies: With a growing focus on water conservation, toilet manufacturers are implementing advanced flushing systems and innovative designs to reduce water consumption without compromising performance.
  3. Hygiene and Antimicrobial Coatings: Toilet manufacturers are exploring the use of antimicrobial coatings and materials that inhibit the growth of bacteria, mold, and mildew, promoting better hygiene and easier cleaning.
  4. Accessibility and Comfort: As populations age, the demand for toilets that offer enhanced accessibility and comfort features, such as higher bowl heights, ergonomic seating positions, and built-in grab bars, is increasing.
  5. Bidet Integration: The integration of bidet functionality into traditional toilet designs is becoming more prevalent, as consumers seek improved hygiene and comfort.
  6. Sustainable Materials and Manufacturing: In line with eco-friendly trends, toilet manufacturers are focusing on using recycled or sustainable materials in their products and implementing more environmentally conscious manufacturing processes.

By staying informed about these innovations and trends, consumers can make choices that not only meet their functional needs but also align with their personal preferences and values.

Frequently Asked Questions (FAQs)

  1. Can I replace just the tank or bowl of a two-piece toilet?
    Yes, with a two-piece toilet, you can replace either the tank or the bowl individually if one component becomes damaged or outdated. This flexibility is a significant advantage of two-piece toilets.
  2. Are one-piece toilets more challenging to install?
    Not necessarily. While one-piece toilets are a single, integrated unit, their installation process is generally straightforward and often requires less alignment and adjustment compared to assembling a two-piece toilet.
  3. Do one-piece toilets have better resale value?
    Generally, one-piece toilets are perceived as more modern and stylish, which can potentially improve a home’s resale value. However, the actual impact on resale value depends on various factors, including the specific model, condition, and overall bathroom design.
  4. Are two-piece toilets more prone to leaks?
    Not inherently. When installed correctly, both one-piece and two-piece toilets can be equally resistant to leaks. However, the connection point between the tank and bowl in a two-piece toilet may require more maintenance to prevent potential leaks over time.
  5. Can I mix and match tanks and bowls from different brands for a two-piece toilet?
    No, it’s not recommended to mix and match tanks and bowls from different brands or models. Each two-piece toilet is designed as a matched set, and using mismatched components can lead to improper fit, leaks, and potential performance issues.
  6. How long do toilets typically last?
    The lifespan of a toilet can vary greatly depending on factors such as usage, maintenance, and water quality. On average, a well-maintained toilet can last between 10 to 20 years, with some high-quality models lasting even longer with proper care.

By understanding the key differences between one-piece and two-piece toilets, as well as staying informed about the latest trends and innovations, you can make an educated decision that aligns with your specific needs, preferences, and budget.


Choosing between a one-piece or two-piece toilet is a decision that should be based on your unique requirements and preferences. One-piece toilets offer a sleek, seamless design and easier cleaning, while two-piece toilets provide more flexibility in maintenance and a wider range of design options.

Ultimately, both one-piece and two-piece toilets can provide reliable performance and meet the demands of modern bathrooms. By considering factors such as aesthetics, installation, maintenance, cleaning, water conservation, and cost, you can select the option that best suits your lifestyle and household.

As the toilet industry continues to evolve, we can expect to see even more innovative designs and technologies that enhance comfort, hygiene, and sustainability. Keep an open mind, do your research, and don’t hesitate to consult with professionals to make the most informed choice for your home or commercial space.