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TOTO Aquia IV Washlet+ S7 Two-Piece - 1.28 GPF & 0.9 GPF

SKU: MW4464726CEMGNA#01
Original Price $2,984.00
Current Price $2,089.00

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TOTO Aquia IV WASHLET+ S7 — MW4464726CEMGNA#01

The TOTO Aquia IV 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
  • 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 MW4464726CEMGNA Installation

TOTO Aquia IV Washlet+ S7 Two-Piece - 1.28 GPF & 0.9 GPF dimensions

TOTO Aquia IV Washlet+ S7 Two-Piece - 1.28 GPF & 0.9 GPF Compatibility

The TOTO Aquia IV Washlet+ S7 is a two-piece elongated smart toilet with integrated 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 integrated WASHLET+ S7 bidet seat).

Installation steps

  1. Prep. Shut off the water supply and flush to empty the tank.
  2. Remove the old toilet. Unbolt from the floor and scrape the old wax ring from the flange.
  3. Set the wax ring. Place a new wax ring on the flange, centered over the drain.
  4. Seat the bowl. Lower onto the flange, press down firmly, and hand-tighten the bolts evenly.
  5. Attach the tank. Bolt the tank to the bowl following the manufacturer alignment marks.

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.

Frequently Asked Questions about TOTO Aquia IV S7 MW4464726CEMGNA

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 an automatic lid that opens and closes by itself, while the S7 does not. Both have similar cleaning and comfort features.

What features does the Toto Washlet S7 include?

The Toto Washlet S7 includes features like warm water cleaning, a heated seat, air dryer, PREMIST, and EWATER+ that helps keep the wand and bowl clean.

Is the TOTO Aquia IV a good toilet?

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

What features does the TOTO Aquia IV offer?

The TOTO Aquia IV offers features like DYNAMAX TORNADO FLUSH, dual flush water saving, CEFIONTECT glaze, skirted design, and EWATER+ with PREMIST for automatic cleaning.

What is the difference between TOTO Aquia Arc and Cube?

The difference between TOTO Aquia Arc and Cube is mainly the design. The Arc has a more curved shape, while the Cube has a more square, modern look.

TOTO Aquia IV Washlet+ S7 Two-Piece - 1.28 GPF & 0.9 GPF

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 push-button, and the trap measures 2-1/4" across.

  • 360º bowl-rinsing DYNAMAX TORNADO FLUSH
  • 1.28 GPF full, 0.9 GPF reduced
  • Chrome push-button flush control
TOTO Aquia IV Washlet+ S7 Two-Piece - 1.28 GPF & 0.9 GPF

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.

This is a two-piece toilet, so the tank and bowl are separate components: the CT446CEGNT40 bowl and the ST446EMNA tank.

  • CEFIONTECT glazed elongated bowl
  • Completely skirted two-piece exterior
  • Concealed WASHLET+ supply connection
TOTO Aquia IV Washlet+ S7 Two-Piece - 1.28 GPF & 0.9 GPF

Adjustable Warm-Water Cleansing with Heated Seat and Dryer

The S7 fitted to this Aquia IV cleanses front and rear using gentle aerated warm water, with both 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
TOTO Aquia IV Washlet+ S7 Two-Piece - 1.28 GPF & 0.9 GPF

EWATER+® on the Wand and Bowl with Remote Convenience

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

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 MW4464726CEMGNA#01: the Aquia IV two-piece toilet with the CT446CEGNT40 elongated CEFIONTECT bowl, the ST446EMNA 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 WASHLET+ S7 Two-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.
Two-piece Construction Elongated front bowl and WASHLET+ S7 and tank set.
Universal Height Universal Height.
Flush Control Chrome push-button.
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 Two-piece Toilet Specifications

Specification Details
Combination Model MW4464726CEMGNA#01
Aquia Variant Aquia IV
Toilet Construction Two-piece
Bowl Model CT446CEGNT40
Tank Model ST446EMNA
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 push-button
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 Not stated on this sheet
Warranty One Year Limited Warranty (combination)

TOTO Aquia IV S7 MW4464726CEMGNA Reviews