TOTO Aquia IV Arc Washlet + S7 Two-Piece

TOTO

SKU: MW4484726CEMFGNA#01

$3,114.00

$2,180.00

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TOTO Aquia IV Arc WASHLET+ S7 — MW4484726CEMFGNA#01

The TOTO Aquia IV Arc WASHLET+ S7 Two-piece Toilet is a completely skirted two-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: Two-piece WASHLET+ toilet (Aquia IV Arc)
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 Arc S7 Installation

TOTO Aquia IV Arc Washlet + S7 Two-Piece dimensions

TOTO Aquia IV Arc Washlet + S7 Two-Piece Compatibility

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

Rough-in measurement: 12-inch 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 the integrated WASHLET+ S7 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 bowl and attach tank. Lower the bowl onto the flange, press down firmly, bolt the tank to the bowl, then hand-tighten floor bolts evenly.
Connect and test. Reconnect the supply line, restore water, and plug the bidet seat 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 Arc Washlet + S7 Two-Piece Downloads

TOTO Aquia IV Arc Washlet + S7 Two-Piece Installation Manual

TOTO Aquia IV Arc Washlet + S7 Two-Piece Spare Parts Manual

TOTO Aquia IV Arc Washlet + S7 Two-Piece Spec Sheet

Frequently Asked Questions about TOTO Aquia IV Arc S7

What is the difference between the TOTO Washlet S7 and S7A?

The difference between the TOTO Washlet S7 and S7A is that the S7A has extra features like additional remote options, while the S7 includes all the main bidet functions such as EWATER+ and PREMIST.

What is the difference between TOTO Aquia arc and cube?

The difference between the TOTO Aquia Arc and Cube is mainly the design: the Arc has smooth, rounded edges for a softer look, while the Cube has a more square, modern appearance.

Is the TOTO Aquia IV a good toilet?

Yes, the TOTO Aquia IV is a good toilet because it has a powerful 360° DYNAMAX TORNADO FLUSH, water-saving dual flush, self-cleaning features, and a sleek design that’s easy to maintain.

What are the features of TOTO Washlet S7?

The features of the TOTO Washlet S7 include a heated seat, EWATER+ auto-cleaning wand and bowl, PREMIST spray, night light, and easy-to-use remote control.

What is the TOTO aquia IV height?

The TOTO Aquia IV height is universal, making it comfortable for most users and easy to use in any bathroom.

TOTO Aquia IV Arc Washlet + S7 Two-Piece

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.

The Arc is a distinct Aquia IV design with its own tank, the ST448EMNA.

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

Adjustable Warm-Water Cleansing with Heated Seat and Dryer

On the Arc, the S7 handles front and rear cleansing with gentle aerated warm water, oscillating and pulsating.

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 puts a film of water in the bowl before you sit down.

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 Arc WASHLET+ S7?

This is combination MW4484726CEMFGNA#01: the Aquia IV Arc two-piece toilet with the CT446CEFGNT40 elongated CEFIONTECT bowl, the ST448EMNA tank, 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 Arc WASHLET+ S7 Two-piece Toilet Features

Feature	Details
Aquia IV Arc 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.
Two-piece Construction	Elongated front bowl and WASHLET+ S7 and tank 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 Arc WASHLET+ S7 Two-piece Toilet Specifications

Specification	Details
Combination Model	MW4484726CEMFGNA#01
Aquia Variant	Aquia IV Arc
Toilet Construction	Two-piece
Bowl Model	CT446CEFGNT40
Tank Model	ST448EMNA
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	Not stated on this sheet
ADA Compliance	ADA compliant for residential use with autoflush feature model, or with trip lever located on the approach side
Warranty	One Year Limited Warranty (combination)