Best TOTO One Piece Toilets, Ranked

The UltraMax II is the TOTO one-piece that does the most for the most people, pairing a maximum 1000 gram MaP score and the brand's Double Cyclone flush with a CeFiONtect-glazed bowl and a clean skirted body that flushes powerfully yet quietly on just 1.28 gallons.

The Double Cyclone flush uses two powerful nozzles instead of rim holes to drive water around the bowl in a centrifugal rinse, which clears the bowl on 1.28 gallons while posting the maximum 1000 gram MaP score. The CeFiONtect glaze fills the microscopic pores in the ceramic so waste and mineral buildup have less to cling to, which means a cleaner bowl with less scrubbing and fewer streaks over the years.

Owner reviews return to the same themes: how powerful yet quiet the flush is, how clean the glazed bowl stays, and how rarely it needs a second flush. The seamless, partially skirted one-piece body adds easy-wipe cleaning on top of that performance. The only real trade-offs are a higher position than the budget two-piece Drake and a universal comfort height that sits taller than some compact powder-room toilets, so it is best when you want flagship performance and seamless cleaning together.

The Vespin II is the fully skirted version of the UltraMax II, hiding the trapway behind a smooth concealed shell so there are no contours at the base to trap dust, while delivering the same maximum 1000 gram Double Cyclone flush.

The Vespin II takes everything that makes the UltraMax II strong, the Double Cyclone flush, the CeFiONtect glaze and the 1000 gram MaP score, and wraps it in a fully skirted base. The skirt encloses the trapway in a smooth outer wall, so there are no exposed contours or crevices around the base to collect dust and mop dirt, and the whole fixture wipes from rim to floor in a single pass.

Owners choose the Vespin II for the high-end, almost European look and the genuinely easy cleaning the skirt enables, all without giving up flagship flush power. The trade-offs are that fully skirted models sit at a premium position and the concealed base can call for a slightly different mounting approach, so installation is a touch more involved. For a modern remodel that wants maximum power and the cleanest possible silhouette, it is the standout, and design-minded shoppers cross-shopping it can also weigh the best Kohler toilets of 2026, ranked and the skirted Veil.

The original UltraMax is TOTO's quiet, dependable one-piece classic, using the G-Max siphon-jet flush for a notably soft, low-noise rinse that owners have trusted for years.

The G-Max system uses a wide 3 inch flush valve and a large computer-designed siphon-jet trapway, which moves a lot of water quickly but with a smooth, low-turbulence action that keeps noise down. That quiet, gentle rinse is the UltraMax's signature, and it is the reason owners with bathrooms next to bedrooms or shared walls keep coming back to it.

The trade-off is water use: the classic UltraMax flushes at 1.6 gallons rather than the 1.28 of the UltraMax II, so it is not the most efficient model in the lineup, and its 800 gram MaP score is strong but a step below the maximum. Owners describe it as a quiet, reliable workhorse that simply does its job for years. If silence matters more to you than the last word in water savings, it is the seamless TOTO to choose.

The Aquia IV one-piece is TOTO's dual-flush seamless model, pairing a 1.28 gallon full flush with a 0.8 gallon light flush and the brand's Tornado Flush rim-jet system for the best balance of water savings and bowl cleanliness.

The Aquia IV one-piece uses TOTO's Tornado Flush, which replaces rim holes with two angled nozzles that spin water around the bowl in a swirling rinse, cleaning the full surface while keeping the bowl tidy. The dual-flush valve lets you choose 0.8 gallons for liquid waste and 1.28 gallons for solids, so household water use drops noticeably over a year without sacrificing a strong full-flush clear.

Owners pick it for the water savings and the swirling, even Tornado rinse that keeps the bowl clean between scrubs. The 1000 gram MaP score on the full flush matches the brand's maximum rating, so it holds up in the busiest family bath just as well as in a low-traffic room, and a few buyers simply prefer a single flush button. For a seamless TOTO built around efficiency, it is the clear pick, and dual-flush shoppers may also want to weigh the modern best American Standard toilets of 2026 dual-flush options.

The Carlyle II is TOTO's sleek, low-tank skirted one-piece, designed for modern bathrooms where a short, clean silhouette and easy cleaning matter as much as the Tornado Flush behind it.

The Carlyle II pairs a low, compact one-piece body with a fully skirted base that conceals the trapway, so it looks clean from every angle and wipes down in seconds. The Tornado Flush spins water around the bowl through angled nozzles rather than rim holes, keeping the bowl clean on an efficient 1.28 gallons, and the short tank suits rooms where a tall traditional toilet would dominate the sightlines.

Owners choose it for the looks and the easy cleaning, and they generally get a reliable, swirling everyday flush in return. Its 800 gram MaP score is solid rather than maximum, so it is best in a powder room or low-traffic bath rather than the family's main bathroom. For a design-led seamless TOTO, it is a standout, and design-minded shoppers comparing modern silhouettes may also like the best Woodbridge toilets of 2026 and their skirted one-piece options.

The Nexus is TOTO's compact, contemporary skirted one-piece, built for small bathrooms and powder rooms where a tight footprint matters but you still want the brand's Tornado Flush and CeFiONtect glaze.

The Nexus packs the brand's Tornado Flush and CeFiONtect glaze into a compact skirted body that takes up less projection than the full-size UltraMax II, which makes it an easy fit in tight rooms. The angled-nozzle Tornado rinse spins water around the bowl for an even clean on 1.28 gallons, and the glaze keeps the bowl resisting stains and buildup between cleanings.

Owners pick the Nexus for the way it brings TOTO engineering and a modern look into a small footprint, and they generally report a clean, reliable everyday flush. Its 800 gram MaP score is solid rather than maximum, so like the Carlyle II it suits low to moderate traffic best. For a compact, design-forward seamless TOTO, it is the model to put first, and small-bathroom shoppers may also want our pillar guide to the best flushing toilets for the cross-brand compact picture.

The Legato is TOTO's high-design skirted one-piece, with a smooth sculptural silhouette and a fully concealed trapway that pairs the brand's maximum 1000 gram Double Cyclone flush with a statement modern look.

The Legato wraps the maximum 1000 gram Double Cyclone flush and CeFiONtect glaze in a smooth, sculptural fully skirted body, so it reads as a high-end design fixture while still flushing with flagship authority. The concealed trapway leaves no contours at the base to trap dust, and the curved silhouette anchors a contemporary bathroom as a deliberate statement rather than an afterthought.

Owners choose the Legato for the looks first and are pleased to find genuine maximum-MaP power behind them, a balance many designer toilets miss. The trade-offs are a premium position and a clearly modern style that suits contemporary rooms more than traditional ones. For a seamless TOTO that doubles as a design centerpiece without giving up power, it is the standout, and it competes with the high-design Swiss Madison St. Tropez covered in our pillar roundup.