TOTO Aurora 1G WASHLET+ S5 One-Piece Toilet - MW6863446CUFG#01

TOTO

SKU: MW6863446CUFG#01

$2,637.00

$1,846.00

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Integrated Bidet Seat: WASHLET S5

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TOTO Aurora 1G Washlet+ S5 — MW6863446CUFG#01

The TOTO Aurora 1G Washlet+ S5 joins the one-piece, completely skirted Aurora 1G toilet, with its elongated bowl, to the Washlet S5 bidet seat, flushing at 1.0 GPF on TOTO's INTEGRAVITY SYSTEM™.

The S5 keeps that core Washlet experience and swaps the arm panel for a wireless remote with personalized memory settings for up to four users — the one documented difference between the two tiers.

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 S5
Controls: Wireless remote, memory settings for up to 4 users

INTEGRAVITY SYSTEM™

A gravity-driven flush engine with two tanks and two valves, INTEGRAVITY sequences the rim wash and the siphon jet. TOTO states it is exclusive to the Aurora.

Completely Skirted Washlet+ Design

One-piece, completely skirted, and paired through Washlet+ with a concealed supply connection — so no protruding pipes or cords show.

CEFIONTECT® and PREMIST®

The ceramic is glazed with CEFIONTECT to prevent debris and mold sticking; PREMIST then wets the bowl, aiding in the removal of waste.

Instantaneous Warm-Water Cleansing

Rear and front washing, oscillating and pulsating modes, and adjustable spray position, water temperature and water pressure — with on-demand water heating.

Heated Seat and Warm-Air Dryer

Seat heating is adjustable, and the dryer provides three warm-air settings, the count TOTO lists for the S2 and the S5.

Wireless Remote + 4-User Memory

A multifunction wireless remote runs the S5, with personalized memory settings for up to four users.

TOTO Aurora 1G S5 Installation

TOTO Aurora 1G WASHLET+ S5 One-Piece Toilet - MW6863446CUFG#01 dimensions

Aurora 1G WASHLET+ 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+ S5 Downloads

TOTO Aurora 1G WASHLET+ Installation Manual

TOTO Aurora 1G WASHLET+ S5 Spec Sheet

Frequently Asked Questions about TOTO Aurora 1G S5

What is the difference between the WASHLET S5 and the S2?

Two things. The S5 uses a wireless remote with memory for four users in place of the S2’s arm-mounted control panel, and its seat body is seamless rather than standard. Instant warm water, PREMIST, EWATER+ wand cleaning, the deodorizer, the heated seat, the dryer and the night light are the same on both.

What does the WASHLET S7 add over the S5?

EWATER+ misting inside the bowl as well as on the wand, plus a button to trigger it by hand; a fourth wash mode; water adjustable down to 86°F rather than 95°F; a five-setting dryer in place of three; a high-output deodorizer mode; an auto-sensing night light; and a slimmer 4.1-inch seat.

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+ S5?

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+ S5 One-Piece Toilet - MW6863446CUFG#01

What Makes the TOTO Aurora One-Piece Design Different?

The Aurora 1G is a one-piece toilet, elongated at the bowl.

Its exterior is completely skirted: TOTO's phrase is a sleek and understated look that's easier to clean.

Because it is a Washlet+ toilet, the supply connection is concealed, so no protruding pipes or cords are left on view.

A 12-inch rough-in is standard; 10-inch and 14-inch versions cost extra.

Elongated bowl, one-piece toilet
Skirted exterior, sleek and understated look
Supply connection concealed, no protruding cords

What Makes the Aurora's INTEGRAVITY Flush Different?

INTEGRAVITY SYSTEM™ is the gravity-driven flush engine TOTO states is exclusive to the Aurora.

Its dual-tank, dual-valve design sequences the rim wash and the siphon jet.

TORNADO FLUSH® is TOTO's ultra high-efficiency bowl design at this flush volume, 1.0 GPF (3.8 LPF).

Its two nozzles produce a centrifugal, cyclonic rinsing action across a hole-free rim.

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

Rim wash and siphon jet in sequence
TORNADO FLUSH® at 1.0 GPF
CEFIONTECT® glaze, PREMIST® before use

What Does the Washlet S5 Add?

The Washlet S5 washes front and rear, using oscillating and pulsating modes.

Spray position, temperature and pressure are all adjustable, and the water is heated on demand.

Seat heating is adjustable and the dryer has three warm-air settings.

A multifunction wireless remote stores personalized memory settings for up to four users.

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

Three warm-air settings, heated seat
Remote with memory for four users
Wand hygiene from EWATER+®

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+ S5?

The TOTO Aurora 1G Washlet+ S5 is one combination SKU, MW6863446CUFG#01, pairing the Aurora 1G one-piece toilet with the Washlet S5 in Cotton.

Flush volume is 1.0 GPF, on a standard 12-inch rough-in with 10-inch and 14-inch options at additional cost.

This is the Aurora configuration for a buyer who wants 1.0 GPF with a wireless remote and user memory.

TOTO Aurora 1G Washlet+ S5 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 S5 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.
Wireless Remote Control	Multifunction remote control with personalized memory settings for up to 4 users.
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+ S5 Specifications

Specification	Details
Combination Model	MW6863446CUFG#01
Toilet Model	CST686CUFGAT40
Washlet Model	Washlet S5
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