What is the difference between the WASHLET S7 and the S7A?

One feature. The S7A adds an automatic open and close lid. EWATER+ in the bowl and on the wand, four wash modes, the five-setting dryer, the high-output deodorizer, the auto-sensing night light, the skin-contact sensor and the 4.1-inch profile are identical on both.

What does EWATER+ in the bowl actually do?

On the S7 and S7A, electrolyzed water mists the bowl after every use and on a timer when the toilet has been unused, and a button on the remote triggers it manually. On the S2 and S5, EWATER+ cleans the wand only. Combined with the CEFIONTECT glaze, the bowl misting is what keeps the ceramic looking clean between cleans.

Should I choose the 1.0 GPF Aurora or the other version?

The two are only about twelve dollars apart, so this is not a cost decision. The 1.0 GPF Aurora 1G suits most homes built in the last forty years and uses roughly 22% less water per flush. Choose the 1.28 GPF Aurora instead if you have a long horizontal drain run with minimal fall, older cast-iron pipe, or this is the only fixture on that branch.

What makes a WASHLET+ toilet different from a standard bidet seat installation?

WASHLET+ is a matched pair. The bowl has a channel cast into the back of it, and the seat runs its power cord and water hose rearward into that channel rather than out of the side. Nothing is visible from the front or the side. An ordinary bidet seat added later will work on this bowl, but its cord and hose will run across the skirt in plain view.

What are the downsides of the Aurora WASHLET+ S7?

The main limitations are that INTEGRAVITY launched in February 2026 and has no long-term field record yet, the warranty is one year rather than the two or three some competitors offer, and the toilet ships with a left-hand trip lever, so ADA compliance requires either a right-hand lever or auto flush. The Ebony finish also ships without CEFIONTECT glaze while costing more than Cotton White. At 132 lbs boxed this is a two-person installation.

TOTO Aurora 1G WASHLET+ One-Piece Toilet

EWATER+ in the bowl: electrolyzed water mists the bowl after every use, not just the wand
Four wash modes: rear, rear soft, front and a wide front soft setting
Five-setting warm air dryer: more control over the finish than the three settings below it
4.1-inch seat profile: visibly slimmer than the S5, with a seamless body
Four user presets: saved wash, seat and dryer settings for each person

TOTO Aurora 1G WASHLET+ One-Piece Toilet - 1.0 GPF - top view

EWATER+ in the Bowl, Not Just on the Wand

On the S2 and S5, electrolyzed water cleans the wand. On the S7 it also mists the bowl after every use and on a timer when the toilet has been sitting unused, and a button on the remote triggers it by hand. Paired with the CEFIONTECT glaze on the ceramic, that is the combination that keeps an Aurora looking clean between actual cleans. A high-output deodorizer mode and an auto-sensing night light across the bowl and seat side are also included.

TOTO Aurora 1G WASHLET+ One-Piece Toilet - 1.0 GPF - White toilet with open lid on a white background

Four Wash Modes and a Slimmer Seat

The S7 adds a wide front soft wash to the rear, rear soft and front modes, and widens the water range to approximately 86°F to 104°F rather than starting at 95°F. The warm air dryer runs across five heat settings instead of three. The seat itself drops to 4.1 inches with a seamless body, and a skin-contact sensor replaces the weight sensor used further down the range. Wash pressure and nozzle position remain fully adjustable.

TOTO Aurora 1G WASHLET+ One-Piece Toilet - 1.0 GPF - side view

A New Flush Engine, Not a New Badge

A conventional gravity toilet empties its tank through a single valve, and that one uncontrolled release has to both rinse the bowl and start the siphon. The Aurora uses two nested tanks and two valves that fire in sequence — one sends the rim wash, the other the siphon jet. TOTO states this extends bowl and rim coverage by up to five times against a standard gravity flush at the same 1.0 gallons.

INTEGRAVITY works alongside TORNADO FLUSH, which is the shape of the bowl rather than the tank: two nozzles drive the water in a cyclonic path instead of feeding it through a ring of rim holes. Most listings for this toilet treat the two as one feature. They are separate systems, and the Aurora has both.

TOTO Aurora 1G WASHLET+ One-Piece Toilet - 1.0 GPF - Front view

Who Should Choose the Aurora WASHLET+ S7?

The Aurora WASHLET+ S7 is best suited to a primary bathroom where you want the full hygiene package rather than the essentials. The bowl misting is the feature owners notice most, because it changes how often the toilet needs cleaning at all.

The Aurora WASHLET+ S7A is this same seat with one addition: a lid that opens and closes automatically. If that is not something you want, the S7 is the better value of the two. If you do not need bowl misting or the fourth wash mode, the Aurora WASHLET+ S5 covers the everyday features for less.

TOTO Aurora WASHLET+ S7 One-Piece Toilet — 1.0 GPF

The Aurora is TOTO’s 2026 flagship one-piece and the first toilet built around the INTEGRAVITY SYSTEM™, a gravity flush engine that sequences the rim wash and the siphon jet instead of releasing both at once. Its flared, fully skirted silhouette conceals the trapway, and CEFIONTECT glaze keeps the ceramic smooth enough that waste and mineral deposits struggle to take hold. This configuration pairs it with the WASHLET S7 (SW4726AT40), model number MW6864726CUFG#01.

As a WASHLET+ system, the power cord and water supply run into a channel cast into the back of the bowl rather than out of the side of the seat, so nothing is visible from the front or the side.

Compare the Four WASHLET Options

Every Aurora WASHLET+ uses the same bowl, the same flush engine and the same glaze. The seat is the only thing that changes. The shaded column is the S7 on this page.

	S2	S5	S7	S7A
Controls	Panel on seat	Wireless remote	Premium remote	Premium remote
User presets	—	4 users	4 users	4 users
Wash modes	3	3	4	4
Water temperature	95–104°F	95–104°F	86–104°F	86–104°F
EWATER+ on wand	Yes	Yes	Yes	Yes
EWATER+ in bowl	—	—	Yes	Yes
PREMIST	Yes	Yes	Yes	Yes
Deodorizer	Automatic	Automatic	High-output	High-output
Warm air dryer	3 settings	3 settings	5 settings	5 settings
Night light	Bowl	Bowl	Auto-sensing	Auto-sensing
Seat construction	Standard	Seamless	Seamless	Seamless
Seat profile	—	5.5 in	4.1 in	4.1 in
Auto open/close lid	—	—	—	Yes
Auto flush ready	Yes	Yes	Yes	Yes

Aurora WASHLET+ S7 Specifications

Specification	Detail
Model number	MW6864726CUFG#01
Flush rate	1.0 GPF single flush
Flush system	INTEGRAVITY SYSTEM with TORNADO FLUSH
Bowl shape	Elongated, one-piece, fully skirted
Rough-in	12 in (10 in and 14 in adapters sold separately)
Product size	29-5/8 × 18-11/16 × 27 in
Seat height	17-3/16 in, Universal Height
Water supply pressure	Minimum 15 psi flowing at 2.64 gal/min
Electrical	120V grounded GFCI outlet, 12 in from floor
Water temperature	86°F – 104°F
Seat temperature	82°F – 97°F
Warm air dryer	Five heat settings
Glaze	CEFIONTECT, Cotton White
Shipping weight	132 lbs
Warranty	One year limited, toilet and WASHLET

What’s Included

Aurora one-piece toilet, Cotton White
WASHLET S7 bidet seat (SW4726AT40)
Wireless remote control
Remote wall-mounting hardware
Tank-to-bowl gasket and hardware
WASHLET mounting hardware
Toilet bolt caps
Installation manual and owner’s manual

A wax ring, floor mounting bolts and a water supply line are not included and will be needed on installation day.

Aurora 1G WASHLET+ S7 Compatibility

The TOTO Aurora 1G WASHLET+ is a one-piece smart toilet with an integrated bidet seat. Confirm these four things before ordering:

Rough-in measurement: 12-inch standard, with 10-inch and 14-inch options available.
Floor clearance: 21 inches in front of the bowl, 15 inches on each side.
Water supply: Standard ½-inch connection at the base of the toilet.
Electrical outlet: GFCI 120V within 3 feet of the toilet base (powers integrated WASHLET+ bidet seat).

Toto toilet compatibility. Will it fit your space/

Installation steps

Prep. Shut off the water supply, flush to empty the tank, then disconnect the supply line.
Remove the old toilet. Unbolt from the floor and scrape the old wax ring from the flange.
Set the wax ring. Place a new wax ring on the flange, centered over the drain.
Seat the new toilet. Lower onto the flange, press down firmly, and hand-tighten the bolts evenly.
Connect and test. Reconnect the supply line, restore water, and plug the WASHLET+ into the GFCI outlet.

TOTO Aurora 1G S7 Downloads

TOTO Aurora 1G WASHLET+ Installation Manual

TOTO Aurora 1G WASHLET+ S7 Spec Sheet

TOTO Aurora 1G WASHLET+ S7 One-Piece Toilet - MW6864726CUFG#01