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TOTO Aquia IV Arc WASHLET+ S2 Two-Piece Toilet - White toilet with closed lid on a white background

TOTO Aquia IV Arc WASHLET+ S2 Two-Piece Toilet

TOTO
SKU: MW4483346CEMFGN#01
$1,869.00
$1,313.00

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Integrated Bidet Seat: WASHLET S2
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TOTO Aquia IV Arc Washlet+ S2

  • DYNAMAX Tornado Flush: 360-degree cleaning power reaches every part of the bowl
  • CEFIONTECT Glaze: Smooth ceramic glaze keeps the bowl cleaner and prevents sticking
  • EWATER+ Self-Cleaning: Electrolyzed water mists the wand before and after each use
  • PREMIST Bowl Spray: Mists the bowl before each use to help waste rinse away
  • Heated Seat: Warm seat for added comfort
  • Warm Air Dryer: Built-in dryer with three adjustable temperature settings
  • Dual Flush Operation: Two flush options to save water on lighter flushes

Concealed supply connection for seamless installation

DYNAMAX TORNADO FLUSH

utilizes 360° cleaning power to reach every part of the bowl

CEFIONTECT

ceramic glaze

QuietF Flush

Heated Seat

TOTO Aquia IV Arc S2 Installation

TOTO Aquia IV Arc WASHLET+ S2 Two-Piece Toilet dimensions

TOTO Aquia IV Arc WASHLET+ S2 Two-Piece Toilet Compatibility

The TOTO Aquia IV Arc WASHLET+ S2 is a two-piece elongated toilet with an 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 the integrated WASHLET+ S2 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. Lower the bowl onto the flange, press down firmly, and hand-tighten the bolts evenly.
  5. Attach the tank. Bolt the tank to the bowl using the manufacturer's hardware and gaskets.

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+ S2 Two-Piece Toilet

TOTO Aquia IV Arc WASHLET+ S2 Two-Piece Toilet Manual

TOTO Aquia IV Arc WASHLET+ S2 Two-Piece Toilet Spec Sheet

Frequently Asked Questions about TOTO Aquia IV Arc S2

Does the TOTO Aquia IV Arc WASHLET+ S2 require electricity?

Yes, the WASHLET S2 bidet seat requires a nearby GFCI electrical outlet to power features like the heated seat, warm water wash, and air dryer.

What is the benefit of the dual flush system?

The dual flush allows you to choose between a lower flush for liquid waste and a higher flush for solid waste, helping save water without sacrificing performance.

Does this model have a self-cleaning feature?

Yes, the bidet wand automatically cleans itself before and after each use, and the bowl is pre-misted to help reduce waste sticking for better hygiene.

Is the seat comfortable for everyday use?

Absolutely. It features a heated seat with adjustable temperature settings, providing consistent comfort, especially during cooler conditions.

Is this a good entry-level bidet toilet?

Yes, the S2 offers essential bidet features like warm water cleansing, heated seat, and dryer without the higher cost of advanced models, making it a great choice for first-time users.

TOTO Aquia IV Arc WASHLET+ S2 Two-Piece Toilet

Adjustable Warm Water Wash with Gentle Cleansing Modes

The S2 WASHLET offers front and rear cleansing with adjustable water temperature, pressure, and spray position. It delivers a consistent and comfortable wash, making it ideal for everyday hygiene without complicated controls.

TOTO Aquia IV Arc WASHLET+ S2 Two-Piece Toilet

Efficient Dual Flush with Powerful Bowl Cleaning

This toilet uses a dual flush system to conserve water while maintaining strong performance. The flushing system creates a powerful swirl that cleans the bowl thoroughly with every use.

TOTO Aquia IV Arc WASHLET+ S2 Two-Piece Toilet

Built-In Night Light for Added Convenience

A soft night light gently illuminates the bowl in low-light conditions, making nighttime use safer and more convenient without needing to turn on bright bathroom lights.

TOTO Aquia IV Arc WASHLET+ S2 Two-Piece Toilet

PREMIST (Clean Synergy) with Self-Cleaning Wand System

The system automatically mists the bowl before each use to help prevent waste from sticking, working together with the self-cleaning wand that rinses before and after every use for improved hygiene.

TOTO Aquia IV Arc WASHLET+ S2 Two-Piece Toilet

The TOTO Aquia IV Arc WASHLET+ S2 combines a modern dual-flush toilet with a comfortable, easy-to-use bidet seat. It features a sleek concealed connection design, heated seat, and adjustable warm water cleansing for everyday comfort. The S2 offers essential bidet functions without the complexity of higher-end models, making it a practical upgrade for most homes.

Perfect for those looking for a clean, minimalist toilet with reliable bidet features.

TOTO Aquia IV Arc WASHLET+ S2 Two-Piece Toilet Specifications and Features

  • Toilet and Washlet included
  • Minimizes waste from sticking to porous ceramic surfaces
  • Completely skirted design for a sleek and understated look 
  • Easy to clean
  • Non-clog 2.5" trapway with clear glaze coating
  • Quiet Flush
  • Elongated front WASHLET toilet seat with cover
  • EWATER+ auto cleans the wand
  • PREMIST the bowl before use
  • Convenient Arm Control Panel
  • Gentle Aerated, Warm Water, Dual Action Spray with oscillating and pulsating feature
  • Heated seat 
  • Warm air drying with three variable temperature settings
  • Quick-release feature
  • Chrome trip lever
  • Two-piece elongated toilet with integrated WASHLET+ connection
  • High-tech Electronic Bidet Seat and Toilet Combination
  • Dual Flush operation
  • Universal Height
  • 12" Rough-in (optional 10" & 14" rough-in)
  • Concealed supply connection for seamless installation
  • DYNAMAX TORNADO FLUSH utilizes 360° cleaning power to reach every part of the bowl
  • CEFIONTECT ceramic glaze

TOTO Aquia IV Arc S2 Reviews