For a sleek and modern appearance, many homeowners favor a one piece toilet design. Not only do one piece toilets lack the somewhat built-up appearance of their two-piece cousins, there are some practical benefits to the one-piece design.

The one-piece toilet will never leak from the gasket that joins bowl to tank – because there is no gasket! One piece toilets are often easier to clean, due to their lack of hidden cracks and crevices, many of which are extremely difficult to reach.

One of the downsides to one-piece toilets is they may cost a little more than two-piece toilets. This discrepancy is mostly due to the added complexities of manufacturing the one-piece toilet.

We choose several of the most popular one piece toilets for your review. Keep in mind that these toilets are often very competitively priced, and you can get one delivered to your door from Amazon for a very reasonable price!

This is the “Champion 4” from American Standard!

American Standard 2034314.020The 4 inch piston action Accelerator™ flush valve can move a 70% larger mass than a standard toilet with a quieter flush too. This means clog-free performance you can depend on. The dramatically increased flushing power effectively scours the bowl without clogging.

The Champion 4 has a “Right Height” toilet seat with a 16-1/2″ rim height that’s just right for comfort and convenience.

The clean and contemporary 1-piece toilet design eliminates the potentially troublesome seal between tank and bowl, leaving you with a striking-looking modern toilet that’s superbly functional as well.

The revolutionary EverClean surface is a micro-finish ceramic finish that’s smoother than ordinary, leaving you with a toilet that clogs less and is more sanitary than a conventional toilet.

The Champion 4 also comes with American Standard’s innovative slow close toilet seat that will never slam – leaving you with peace and quiet at all times!

Standard features with the Champion 4 include;

  • Elongated Right Height siphon action jetted bowl for comfort and convenience.
  • Slow Close Toilet Seat included – no more slamming of the lid!
  • EverClean Surface keeps your toilet cleaner, longer, preventing clogs and adding a level of cleanliness no other toilet can match.
  • Low-consumption (6.0 Lpf/1.6 gpf) helps you save water – more efficient than a conventional toilet.
  • 4″ piston action Accelerator™ flush valve moves up to 70% larger mass than regular toilets.

TOTO MS854114S#01 Ultramax Elongated One Piece Toilet, Cotton White

TOTO UltraMax® One-Piece Toilet, 1.6 GPF, Elongated Bowl

The TOTO UltraMax® One-Piece Toilet, 1.6 GPF, Elongated Bowl toilet is a stunning one-piece design that looks both futuristic and comfortable at the same time!

This top-of-the-line toilet uses the patented G-Max flushing system which simultaneously draws more water into the bowl while pushing out waste more forcefully. All this at a maximum of 1.6 gallons of water per flush!

Color Options

You get the choice of four standard color options – Cotton, Bone (light tan), ColoniaL White and Sedona Beige.

toto toilet colors


CEFIONTECT Construction

Here’s more – this TOTO toilet has the CEFIONTECT ceramic glaze process which creates an extraordinarily smooth surface (right down to the ions in the ceramic) to help prevent waste from clogging the trap and provides for a smoother, more sanitary finish.


More Standard Features

  • The fully-glazed trapway is computer-designed for the ultimate in performance, durability and clog prevention.
  • The elongated design is proven to be more comfortable for use with people of all sizes and shapes.
  • You also get the SoftClose Seat, meaning you’ll never have to cringe at a toilet seat slamming down onth the bowl ever again!

Of course, this TOTO one-piece toilet will fit into your standard bathroom with a 12″ rough-in.

Sleek and stylish, the KOHLER 3810-0 Santa Rosa Comfort Height Elongated 1.28 GPF Toilet with AquaPiston Flush Technology and Left-Hand Trip Lever is a great choice for those looking for a one-piece toilet that’s full of quality and thoughtful design, but doesn’t cost an arm and a leg.

The Santa Rosa Comfort Height Elongated Bowl one-piece toilet has a 1.28 gallon high-efficiency flush that offers water savings of up to 16,500 gallons per year over a 3.5 gallon flush toilet!

KOHLER 3810-0 Santa Rosa Comfort Height Elongated

Images courtesy of Kohler

Comfort height seating means comfort is designed-in and is not an afterthought! Sitting or standing up, the KOHLER 3810-0 Santa Rosa Comfort Height Elongated One-Piece toilet is designed with you in mind.

The Canister Flushing mechanism provides a much more powerful flushing action vs. the old-style flapper valve, while using much less water per flush!