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TOTO Aquia IV Arc Washlet+ S7A Two-Piece - White toilet with closed lid on a white background

TOTO Aquia IV Arc Washlet+ S7A Two-Piece

TOTO
SKU: MW4484736CEMFGNA#01

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TOTO Aquia IV Arc WASHLET+ S7A — MW4484736CEMFGNA#01

The TOTO Aquia IV Arc WASHLET+ S7A Two-piece Toilet is a completely skirted two-piece toilet with dual-flush DYNAMAX TORNADO FLUSH® and TOTO's top-tier WASHLET+ S7A, the only seat in the range with a touchless lid.

Choose the auto-flush configuration and the toilet flushes itself while the lid opens and closes untouched, so an ordinary visit needs no contact with the fixture at all; the standard configuration keeps the same seat and adds the flush kit only if you want it later.

  • 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+ S7A (SW4736AT40)
  • 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 S7A washes front and rear with aerated warm water, with oscillating and pulsating modes and independently adjustable position, temperature and pressure.

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.

Touchless Auto Open/Close Lid

The S7A is the only WASHLET tier with a touchless auto open/close lid, which is what separates it from the otherwise closely matched S7.

TOTO Aquia IV Arc S7A Installation

TOTO Aquia IV Arc Washlet+ S7A Two-Piece dimensions

TOTO Aquia IV Arc Washlet+ S7A Two-Piece Compatibility

The TOTO Aquia IV Arc Washlet+ S7A is a two-piece elongated smart toilet with an integrated S7A 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 required within 3 feet (powers integrated S7A bidet seat).

Installation steps

  1. Prep. Shut off the water supply, flush to empty the tank, then disconnect the supply line.
  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 and bolt the tank. Lower the bowl onto the flange, press down firmly, hand-tighten bolts, then attach the tank.
  5. Connect and test. Reconnect the supply line, restore water, and plug the S7A 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+ S7A Downloads

TOTO Aquia IV Arc Washlet+ S7A Two-Piece Installation Manual

TOTO Aquia IV Arc Washlet+ S7A Two-Piece Spare Parts Manual

TOTO Aquia IV Arc Washlet+ S7A Two-Piece Spec Sheet

Frequently Asked Questions about TOTO Aquia IV Arc S7A

Is the TOTO Aquia IV a good toilet?

The TOTO Aquia IV is a good toilet because it combines efficient flushing, water-saving features, and a sleek design that’s easy to maintain.

What are the TOTO Aquia IV features?

The TOTO Aquia IV features a dual flush system, powerful tornado flush, easy-clean surface, and compatibility with WASHLET bidet seats for added comfort.

What is the TOTO Aquia IV made of?

The TOTO Aquia IV is made of high-quality ceramic with a smooth glaze that helps prevent waste from sticking and keeps the bowl easy to clean.

How does the TOTO Aquia IV flush?

The TOTO Aquia IV flushes using a 360° DYNAMAX TORNADO FLUSH system that cleans the entire bowl efficiently while using less water.

What's the difference between the TOTO S7 and S7A?

The difference between the TOTO S7 and S7A is that the S7A includes an automatic open and close lid and added convenience features, while the S7 focuses on core bidet functions.

TOTO Aquia IV Arc Washlet+ S7A 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 trap measures 2-1/4" across, and the bowl takes the standard 12-inch rough-in with 10-inch and 14-inch Unifit adapters available.

  • 360º bowl-rinsing DYNAMAX TORNADO FLUSH
  • 1.28 GPF full, 0.9 GPF reduced
  • 2-1/4 inch trap diameter on the bowl
TOTO Aquia IV Arc Washlet+ S7A Two-Piece

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
TOTO Aquia IV Arc Washlet+ S7A Two-Piece

Adjustable Warm-Water Cleansing with Heated Seat and Dryer

On the Arc, the S7A 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
TOTO Aquia IV Arc Washlet+ S7A Two-Piece

EWATER+®, PREMIST® and the Touchless Auto Open/Close Lid

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.

The S7A is the only tier with a touchless auto open/close lid, driven by a multifunction pearl white block-style remote control that stores each user's settings. CLEAN RESIN keeps the wand and seat easier to maintain, and night light illuminates the side and the inside of the bowl.

  • EWATER+ on the wand and bowl
  • PREMIST before every use
  • Touchless auto open/close lid

What do you get with the Aquia IV Arc WASHLET+ S7A?

This is combination MW4484736CEMFGNA#01: the Aquia IV Arc two-piece toilet with the CT446CEFGNT40 elongated CEFIONTECT bowl, the ST448EMNA tank, and the SW4736AT40 WASHLET+ S7A, 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+ S7A Two-piece Toilet Features

TOTO Aquia IV Arc WASHLET+ S7A Two-piece Toilet (MW4484736CEMFGNA#01) — full feature list by category, as published by TOTO
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+ S7A and tank set.
Universal Height Universal Height.
Auto Flush Included with the auto-flush model (THU855 kit); available as an upgrade on the standard model.
WASHLET S7A 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.
Touchless Auto Open/Close Lid Touchless auto open/close lid — S7A only.
Auto Energy Saver Adjusts the seat temperature when inactive.

Features transcribed from TOTO spec sheet SS-02189 for MW4484736CEMFGNA#01; WASHLET S7A features from TOTO's own WASHLET documentation. Where TOTO does not list a feature for this model, it is not claimed here.


TOTO Aquia IV Arc WASHLET+ S7A Two-piece Toilet Specifications

TOTO Aquia IV Arc WASHLET+ S7A Two-piece Toilet (MW4484736CEMFGNA#01) — specifications, flush, rough-in, electrical and warranty
Specification Details
Combination Model MW4484736CEMFGNA#01
Aquia Variant Aquia IV Arc
Toilet Construction Two-piece
Bowl Model CT446CEFGNT40
Tank Model ST448EMNA
WASHLET Model SW4736AT40 (WASHLET+ S7A)
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 Not stated on this sheet
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)

Specifications from TOTO spec sheet SS-02189 for MW4484736CEMFGNA#01. Rows marked “Not stated on this sheet” are fields TOTO does not publish for this model, and nothing has been inferred from a similar model. Warranty is TOTO's published combination warranty, not a retailer warranty.

TOTO Aquia IV Arc S7A Reviews