TOTO Aurora 1G WASHLET+ S2 One-Piece Toilet - 1.0 GPF

TOTO

SKU: MW6863346CUFG#01

$2,438.00

$1,585.00

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Integrated Bidet Seat: WASHLET S2

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TOTO Aurora 1G Washlet+ S2 — MW6863346CUFG#01

The TOTO Aurora 1G Washlet+ S2 is a one-piece, completely skirted toilet with an elongated bowl, supplied with the Washlet S2 bidet seat and flushing at 1.0 GPF on TOTO's INTEGRAVITY SYSTEM™.

The S2 covers the core Washlet cleansing and comfort functions — front and rear washing, a heated seat and a warm-air dryer — with an arm control panel on the side of the seat.

Toilet Type: One-piece Washlet+ toilet
Bowl Shape: Elongated, completely skirted
Flush: INTEGRAVITY SYSTEM™ — 1.0 GPF (3.8 LPF)
Rough-In: 12" (10" and 14" options available at additional cost)
Seat Height: 17 9/16"
Included Washlet: Washlet S2
Controls: Arm control panel on the side of the seat

INTEGRAVITY SYSTEM™

INTEGRAVITY SYSTEM™ is gravity-driven, using a dual-tank, dual-valve architecture to sequence the rim wash and the siphon jet. TOTO states it is exclusive to the Aurora.

Completely Skirted Washlet+ Design

A one-piece toilet with a completely skirted exterior, and a concealed Washlet+ supply connection that keeps pipes and cords out of sight.

CEFIONTECT® and PREMIST®

CEFIONTECT glaze prevents debris and mold from sticking to ceramic surfaces, and PREMIST wets the bowl surface before use, aiding in the removal of waste.

Instantaneous Warm-Water Cleansing

Front and rear washing with oscillating and pulsating modes, plus adjustable spray position, temperature and pressure. The water is heated on demand, not stored.

Heated Seat and Warm-Air Dryer

The seat is heated with adjustable temperature, and the warm-air dryer offers three settings — the count TOTO gives the S2 and S5.

Arm Control Panel

Every function on the S2 is set from a convenient arm control panel on the side of the seat.

TOTO Aurora 1G S2 Installation

TOTO Aurora 1G WASHLET+ S2 One-Piece Toilet - 1.0 GPF dimensions

Aurora 1G WASHLET+ S2 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).

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.

Need a Professional Installer near you?

If you need help finding a professional installer in your area, checkout Licensed TOTO Installers page to find one near you.

Aurora 1G WASHLET+ Downloads

TOTO Aurora 1G WASHLET+ Installation Manual

TOTO Aurora 1G WASHLET+ S2 Spec Sheet

Frequently Asked Questions about TOTO Aurora 1G S2

Does the WASHLET S2 come with a remote control?

No. The WASHLET S2 is operated from a control panel mounted on the right arm of the seat. If you would prefer a wireless remote with memory for up to four users, that is the WASHLET S5, which is otherwise the same seat.

Is the WASHLET S2 missing features the other WASHLETs have?

Less than most comparison charts suggest. The S2 includes instant warm water, PREMIST, EWATER+ wand cleaning, an automatic deodorizer, a heated seat, a three-setting warm air dryer and a night light. What it genuinely lacks against the S5 is the wireless remote and the seamless seat body.

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+ S2?

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+ S2 One-Piece Toilet - 1.0 GPF

What Makes the TOTO Aurora One-Piece Design Different?

The Aurora 1G is a one-piece toilet with an elongated bowl.

TOTO finishes it with a completely skirted exterior — in its words, a sleek and understated look that's easier to clean.

The Washlet+ connection is concealed, so no protruding pipes or cords sit between the toilet and the seat.

It sets on a standard 12-inch rough-in, with 10-inch and 14-inch options at additional cost.

One-piece toilet, elongated bowl
Completely skirted exterior, cleaner look
Concealed Washlet+ connection, no cords

What Makes the Aurora's INTEGRAVITY Flush Different?

The Aurora 1G runs on TOTO's INTEGRAVITY SYSTEM™, which TOTO states is exclusive to the Aurora.

It sequences the rim wash and the siphon jet using a dual-tank, dual-valve architecture.

The bowl design is TORNADO FLUSH®, which TOTO calls ultra high-efficiency at 1.0 GPF (3.8 LPF).

Two nozzles create a centrifugal, cyclonic rinsing action across a hole-free rim.

CEFIONTECT® glaze prevents debris and mold sticking to the ceramic, and PREMIST® wets the bowl before use.

Dual-tank, dual-valve flush sequencing
Ultra high-efficiency bowl design
Two nozzles, hole-free rim design

What Does the Washlet S2 Add?

The Washlet S2 washes front and rear, using oscillating and pulsating modes.

Spray position, water temperature and water pressure all adjust, and water is heated on demand.

The seat is heated, with three warm-air dryer settings.

An arm control panel on the side of the seat runs every function.

EWATER+® keeps the wand hygienic, the wand self-cleans, and the seat includes an automatic air deodorizer.

Three dryer settings and heated seat
Arm panel controls on the seat
EWATER+® hygiene on the wand

Which TOTO Aurora 1G Washlet Should You Choose: S2, S5, S7 or S7A?

All four Aurora 1G configurations use the same 1.0 GPF toilet, so the choice is which Washlet goes on top.

All four share the core cleansing and comfort functions: washing, on-demand water heating, a heated seat and a dryer.

Choose the S2 if… you want the core Washlet cleansing and comfort functions with the arm-mounted control panel.
Choose the S5 if… you prefer a wireless remote with memory for up to four users.
Choose the S7 if… you want five dryer settings rather than three, and EWATER+® cleaning for both the wand and the bowl.
Choose the S7A if… you want everything in the S7 feature set plus the touchless automatic open/close lid.
S2 → S5: the arm panel becomes a wireless remote with 4-user memory.
S5 → S7: three dryer settings become five, and EWATER+® adds the bowl.
S7 → S7A: the touchless automatic open/close lid is added.

Auto-flush Aurora 1G configurations exist for S7 and S7A; these four SKUs do not include auto flush.

What do you get with the TOTO Aurora 1G Washlet+ S2?

The TOTO Aurora 1G Washlet+ S2 is one combination SKU, MW6863346CUFG#01, pairing the Aurora 1G one-piece toilet with the Washlet S2 in Cotton.

It flushes at 1.0 GPF on a standard 12-inch rough-in, with 10-inch and 14-inch rough-ins at additional cost.

This is the Aurora configuration for a buyer who wants 1.0 GPF with the core Washlet functions and arm controls.

TOTO Aurora 1G Washlet+ S2 Features

Feature	Details
Aurora 1G Toilet Features
INTEGRAVITY SYSTEM™	Gravity-driven flush engine with a dual-tank, dual-valve architecture that sequences rim wash and siphon jet.
TORNADO FLUSH®	Two nozzles create a centrifugal, cyclonic rinsing action, with a hole-free rim design. TOTO calls the 1.0 GPF version ultra high-efficiency.
CEFIONTECT®	Ceramic glaze that prevents debris and mold from sticking to ceramic surfaces.
Completely Skirted Design	Completely skirted design, for a sleek and understated look that's easier to clean.
One-Piece Construction	The Aurora 1G is a one-piece toilet.
Washlet+ Concealed Connection	Concealed supply connection for seamless installation.
Universal Height	Listed by TOTO as Universal Height, ADA compliant.
Washlet S2 Features
Front and Rear Wash	Washes front and rear.
Soft Rear Wash	Soft rear washing.
Oscillating and Pulsating	Oscillating and pulsating wash modes.
Adjustable Spray	Adjustable spray position, water temperature and water pressure.
Instantaneous Water Heater	Heats only the water needed, rather than a tank of stored warm water.
Heated Seat	Heated seat with temperature control.
Warm Air Dryer	Warm air dryer with three settings.
EWATER+® — Wand	Electrolyzed water is used to keep the wand hygienic.
PREMIST®	Wets the surface of the toilet bowl, aiding in the removal of waste.
Self-Cleaning Wand	The wand is cleaned automatically after every use.
Automatic Air Deodorizer	Automatic air deodorizer.
Arm Control Panel	Convenient arm control panel on the side of the seat.
Night Light	Night light illuminates the inside of the bowl.
CLEAN RESIN®	Grime-resistant seat material that resists the adherence of stains.
Seamless Seat Design	Seamless seat design.
SoftClose® Seat	SoftClose® seat and lid.
Docking Station	Docking station.
Auto Energy Saver Mode	Automatic energy-saving mode.

TOTO Aurora 1G Washlet+ S2 Specifications

Specification	Details
Combination Model	MW6863346CUFG#01
Toilet Model	CST686CUFGAT40
Washlet Model	Washlet S2
Toilet Type	One-piece Washlet+ toilet
Bowl Shape	Elongated, completely skirted
Color	Cotton (#01)
Seat Height	17 9/16"
Rough-In	12"
Optional Rough-In	10" (TSU49.10) and 14" (TSU49.14), at additional cost
Water Use	1.0 GPF (3.8 LPF)
Flush System	INTEGRAVITY SYSTEM™ with TORNADO FLUSH® bowl design
Electrical	AC 120V, 60Hz
ADA Compliance	Universal Height, ADA compliant
Warranty	One Year Limited Warranty