Save up to 35% on select items with code FALL26
Save up to 35% on select items with code FALL26
Skip to content
TOTO Aquia IV One-Piece Toilet - Main image of a white toilet on a white background

TOTO Aquia IV One-Piece Toilet

TOTO
SKU: MS646234CEMFGN#01

FREE Shipping + No Sales Tax

$1,729.00
$1,211.00
Authorized TOTO National Dealer
Fast & Free Shipping On All Orders
Pay How You Want Credit Card, Shop Pay, PayPal, HSA/FSA with Truemed and more.
Hundreds of 5-Star Reviews Dedicated Customer Support
Questions? Talk to a Real Person.
(877) 420-3443 Message Us

TOTO Aquia IV One-Piece

  • Tornado Flush: 360-degree flush cleans the entire bowl with powerful water circulation
  • Dual Flush: Choose to save water on lighter flushes
  • CEFIONTECT Glaze: Smooth ceramic glaze keeps the bowl cleaner and prevents sticking
  • Fully Skirted Design: Concealed trapway for a sleek modern look and easier cleaning
  • SoftClose Seat: Seat lowers itself silently without slamming
  • WASHLET+ Compatible: Designed to work seamlessly with TOTO WASHLET+ bidet seats
  • Quiet Flush System: Efficient flush operation with minimal noise
TOTO Aquia IV One-Piece Toilet - top view
TOTO Aquia IV One-Piece Toilet - tornado flush

Tornado Flush System

The 360° TORNADO FLUSH cleans the entire bowl with strong, efficient water flow while using less water per flush. This is a key feature found in Toto Dual Flush Toilets.

TOTO Aquia IV One-Piece Toilet - cefiontect

CEFIONTECT and Easy-Clean Design

The CEFIONTECT glaze keeps the surface smooth and prevents waste from sticking, while the skirted design makes cleaning quick and easy. These features are common in Toto One Piece Toilets.

TOTO Aquia IV One-Piece Toilet - dual flush

Dual Flush Efficiency

The dual flush system lets you choose between a light or full flush, helping reduce water usage without sacrificing performance.

TOTO Aquia IV One-Piece Toilet - side view

Comfort and Compatibility

The universal height, elongated bowl, and SoftClose seat provide everyday comfort, and it’s designed to work seamlessly with Toto Washlet+ Toilet Sets for easy upgrades.

TOTO Aquia IV One-Piece

The Aquia IV one-piece toilet combines a modern look with high-efficiency Tornado Flush technology that saves water with every flush. Its smooth ceramic glaze keeps the bowl clean and prevents debris from sticking.

Perfect for those who want an efficient and easy-to-maintain toilet.

TOTO Aquia IV Specifications and Features

  • Made to fit WASHLET+ bidet seats
  • Tornado Flush cleans the whole bowl with 360° power
  • CEFIONTECT glaze keeps the bowl smooth and prevents sticking
  • Fully skirted for a clean, modern look
  • Non-clog 2.5" trapway with smooth coating
  • Quiet flushing system
  • Elongated front bowl with SoftClose seat
  • Dual flush for water efficiency
  • Chrome push-button included
  • 12" rough-in (optional 10" & 14")
  • Universal height for comfort

TOTO Aquia IV One-Piece Toilet Compatibility

The TOTO Aquia IV is an elongated, one-piece toilet with a fully skirted design. Confirm these three 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.
Toto toilet compatibility. Will it fit your space/

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 new toilet. Lower onto the flange, press down firmly, and hand-tighten the bolts evenly.
  5. Connect and test. Reconnect the supply line and restore water pressure.

TOTO Aquia IV One-Piece Downloads

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

TOTO Aquia IV One-Piece Spec Sheet

Frequently asked questions about the TOTO Aquia IV MS646234CEMFGN#01

Is the TOTO Aquia IV a good toilet?

The TOTO Aquia IV is a good toilet because it offers strong flushing performance, water efficiency, and a sleek design that’s easy to maintain.

What are the TOTO Aquia IV features?

The TOTO Aquia IV features dual flush for water savings, a powerful Tornado Flush system, an easy-clean glaze, and a modern skirted design.

What is the TOTO Aquia IV made of?

The TOTO Aquia IV is made of durable 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° Tornado Flush system that cleans the entire bowl efficiently while using less water.

What is a TOTO Aquia IV toilet?

A TOTO Aquia IV toilet is a modern, high-efficiency toilet designed with a sleek look, dual flush system, and powerful Tornado Flush for better cleaning.

TOTO Aquia IV MS646234CEMFGN#01 Reviews