TOTO Aquia IV Washlet+ S7 One-Piece

TOTO

SKU: MW6464726CEMFGNA#01

$3,415.00

$2,391.00

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Integrated Bidet Seat: WASHLET S7

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With Auto-Flush

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TOTO Aquia IV WASHLET+ S7 — MW6464726CEMFGNA#01

The TOTO Aquia IV WASHLET+ S7 One-piece Toilet is a completely skirted one-piece toilet with dual-flush DYNAMAX TORNADO FLUSH® and the WASHLET+ S7, the tier where EWATER+ starts cleaning the bowl as well as the wand.

The auto-flush configuration adds TOTO's THU855 kit so the toilet flushes on its own, and the multifunction pearl white block-style remote handles everything else from across the room. The standard configuration is the same toilet and the same seat without that kit.

Toilet Type: One-piece WASHLET+ toilet
Height: Universal Height
Bowl Shape: Elongated, completely skirted
Flush: DYNAMAX TORNADO FLUSH® — 1.28 / 0.9 GPF
Rough-In: 12" standard; optional 10" (TSU48.10) and 14" (TSU48.14)
Included WASHLET: WASHLET+ S7 (SW4726AT40)
Controls: Multifunction pearl white block-style remote, memory for up to 4 users
Auto Flush: Included with the auto-flush model (THU855 kit); available as an upgrade on the standard model

DYNAMAX TORNADO FLUSH® with Dual Flush

TOTO's DYNAMAX TORNADO FLUSH uses 360º cleaning power to reach every part of the bowl, and you pick 1.28 GPF for a full flush or 0.9 GPF for a reduced one.

CEFIONTECT® Ceramic Glaze

CEFIONTECT minimizes waste sticking to porous ceramic surfaces, which supports easier bowl cleaning between flushes.

Completely Skirted WASHLET+ Design

The skirted exterior gives you a flat surface to wipe rather than a contoured trapway, and the WASHLET+ connection conceals the seat's supply line.

Adjustable Warm-Water Cleansing

The S7 cleanses front and rear with aerated warm water, oscillating and pulsating, and its water range starts lower than the S2 and S5 at 86ºF.

Heated Seat and Five-Setting Dryer

The seat is heated with its own temperature control, and the warm-air dryer offers five variable temperature settings.

EWATER+ on the Wand and the Bowl

EWATER+ cleans the wand and the bowl after every use on the S7, where the S2 and S5 clean the wand only — that is the real step up between the tiers.

TOTO Aquia IV S7 MW6464726CEMFGNA Installation

TOTO Aquia IV Washlet+ S7 One-Piece dimensions

TOTO Aquia IV Washlet+ S7 One-Piece Compatibility

The TOTO Aquia IV Washlet+ S7 is a one-piece smart toilet with an integrated bidet seat. Confirm these four things before ordering:

Rough-in measurement: 12 inches standard. 10" and 14" supported with TSU01W adapter (sold separately).
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 (powers integrated bidet seat and controls).

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 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.

TOTO Aquia IV Washlet+ S7 One-Piece Downloads

TOTO Aquia IV Washlet+ S7 One-Piece Installation & Owner's Manual

TOTO Aquia IV Washlet+ S7 One-Piece Spare Parts Manual

TOTO Aquia IV Washlet+ S7 One-Piece Spec Sheet

Frequently Asked Questions about TOTO Aquia IV S7 MW6464726CEMFGNA

Is the TOTO Aquia IV a reliable toilet?

Yes, the TOTO Aquia IV is a reliable toilet because it has a strong flush, water-saving dual flush system, and a design that’s easy to keep clean.

How is a TOTO WASHLET different from WASHLET+?

The difference between a TOTO WASHLET and WASHLET+ is that a WASHLET is a bidet seat you add to a toilet, while WASHLET+ is made to pair with a compatible toilet to hide cords and hoses.

What features does the TOTO Aquia IV have?

The TOTO Aquia IV has a dual flush system, powerful flushing, smooth ceramic glaze, and a sleek design that works with WASHLET+ for a clean setup.

What material is the TOTO Aquia IV made of?

The TOTO Aquia IV is made of durable ceramic with a smooth glaze that helps prevent dirt and waste from sticking.

What’s the difference between a bidet and a WASHLET toilet?

The difference is that a bidet is a separate fixture or simple attachment, while a WASHLET is an advanced bidet seat with features like warm water, heated seat, and dryer.

DYNAMAX TORNADO FLUSH® with 1.28 / 0.9 GPF Dual Flush

TOTO states that DYNAMAX TORNADO FLUSH utilizes 360º cleaning power to reach every part of the bowl.

You get two flush volumes: 1.28 GPF for a full flush and 0.9 GPF for the reduced flush, which TOTO classes as ultra high-efficiency.

The flush is operated by a chrome plated trip lever, and the trap measures 2-1/4" across.

360º bowl-rinsing DYNAMAX TORNADO FLUSH
1.28 GPF full, 0.9 GPF reduced
Chrome plated trip lever flush control

CEFIONTECT® with a Completely Skirted WASHLET+ Design

CEFIONTECT ceramic glaze minimizes waste from sticking to porous ceramic surfaces, supporting easier bowl cleaning between flushes.

TOTO describes the completely skirted design as a sleek and understated look that is easier to clean, with no contoured trapway to wipe around.

Because this is a one-piece toilet there is no seam between tank and bowl to wipe along.

CEFIONTECT glazed elongated bowl
Completely skirted one-piece exterior
Concealed WASHLET+ supply connection

Adjustable Warm-Water Cleansing with Heated Seat and Dryer

On this one-piece Aquia IV the S7 cleanses front and rear with gentle aerated warm water, with oscillating and pulsating features.

Spray position, water temperature and water pressure each adjust on their own, and the water range runs 86ºF–104ºF.

An instantaneous water heater supplies continuous warm water, the seat is heated across 82ºF–97ºF, and the warm air dryer offers five variable settings.

Front and rear aerated warm water
Oscillating and pulsating spray modes
Five-setting warm air dryer

EWATER+® on the Wand and Bowl with Remote Convenience

EWATER+ auto-cleans the wand and the bowl after every use, and PREMIST automatically mists the bowl before each one.

The wand also cleans itself inside and out before and after every use.

Controls are handled by a multifunction pearl white block-style remote control, and CLEAN RESIN keeps the wand and seat easier to maintain. Night light illuminates the side and the inside of the bowl.

EWATER+ on the wand and bowl
PREMIST before every use
Memory settings for up to four users

What do you get with the Aquia IV WASHLET+ S7?

This is combination MW6464726CEMFGNA#01: the Aquia IV one-piece toilet with the CST646CEMFGNAT40 elongated CEFIONTECT bowl, and the SW4726AT40 WASHLET+ S7, in Cotton.

It is Universal Height, flushes at 1.28 / 0.9 GPF, and sets on a 12" rough-in, with 10" and 14" Unifit adapters available as TSU48.10 and TSU48.14.

The auto-flush model adds TOTO's THU855 Auto Flush Kit; the standard model does not include it, and TOTO lists it as an available upgrade.

TOTO Aquia IV WASHLET+ S7 One-piece Toilet Features

Feature	Details
Aquia IV Toilet Features
DYNAMAX TORNADO FLUSH®	Utilizes 360º cleaning power to reach every part of the bowl.
Dual Flush	1.28 GPF full flush / 0.9 GPF reduced flush (4.8 LPF / 3.4 LPF).
CEFIONTECT®	Ceramic glaze minimizes waste from sticking to porous ceramic surfaces.
Completely Skirted Design	A sleek and understated look that's easier to clean.
WASHLET+ Concealed Connection	Concealed supply connection for seamless installation.
One-piece Construction	Elongated front bowl toilet and WASHLET+ S7 set.
Universal Height	Universal Height.
Flush Control	Chrome plated trip lever.
Auto Flush	Included with the auto-flush model (THU855 kit); available as an upgrade on the standard model.
WASHLET S7 Features
Front and Rear Cleansing	Gentle aerated, warm water, front and rear spray with oscillating and pulsating features.
Adjustable Cleansing	Adjustable spray position, water temperature, and water pressure.
Instantaneous Water Heating	Instantaneous water heater for continuous warm water and energy savings.
Warm Air Dryer	Five variable temperature settings, 95ºF–140ºF.
Heated Seat	Heated seat with temperature control, 82ºF–97ºF.
Automatic Deodorizer	Automatic air deodorizer.
EWATER+®	Auto-cleans the wand and bowl after every use.
PREMIST®	Automatically mists the bowl before each use.
Self-Cleaning Wand	Cleans itself inside and out before and after every use.
CLEAN RESIN®	Keeps wand and seat cleaner, more hygienic, and effortless to maintain.
Seamless Seat	Seamless seat design eliminates the gap where dirt collects.
Night Light	Illuminates the side and the inside of the bowl.
Controls	Multifunction pearl white block-style remote control.
User Memory	Personalized memory settings for up to 4 users.
Auto Energy Saver	Adjusts the seat temperature when inactive.

TOTO Aquia IV WASHLET+ S7 One-piece Toilet Specifications

Specification	Details
Combination Model	MW6464726CEMFGNA#01
Aquia Variant	Aquia IV
Toilet Construction	One-piece
Bowl Model	CST646CEMFGNAT40
Tank Model	N/A — one-piece toilet
WASHLET Model	SW4726AT40 (WASHLET+ S7)
Bowl Shape	Elongated, completely skirted
Color	#01 Cotton
Height Classification	Universal Height
Seat Height	Not stated on this sheet
Rough-In	12"
Optional Rough-In	10" (TSU48.10) and 14" (TSU48.14)
Water Use	1.28 GPF / 0.9 GPF (4.8 LPF / 3.4 LPF)
Flush System	DYNAMAX TORNADO FLUSH®
Flush Control	Chrome plated trip lever
Auto Flush	Included with the auto-flush model (THU855 kit); available as an upgrade on the standard model
Electrical	GFCI outlet of 120V, 15A. Washlet power cord is 4' long with 3 prongs.
ADA Compliance	ADA compliant for residential use with autoflush feature model
Warranty	One Year Limited Warranty (combination)