Toto

TOTO Aquia IV Cube Washlet+ S2 Two-Piece 1.28 & .9 Gpf

SKU: MW4363346CEMFGN#01

Regular price: Price: $1,251.00
Regular price: List Price: $1,787.00
Sale price: Price: $1,251.00
Unit price: per

Rough-In Size 12" 10" 14"

Product variants

Quantity

Free Shipping
Best Price Guarantee
1 Year Warranty

Geometric Elegance, Intelligent Comfort

The TOTO Aquia IV Cube WASHLET+ S2 Two-Piece Toilet blends clean, modern geometry with a softened, rounded silhouette. Compared to the original Aquia, the Cube features a more sculpted tank and bowl profile that balances structure with subtle curves—ideal for contemporary bathrooms seeking a softened modern look. With a fully skirted base and concealed connections, this two-piece toilet maintains a clean, seamless aesthetic.

Behind the style is serious performance: the Aquia IV Cube features TOTO’s DYNAMAX TORNADO FLUSH® system with dual flush options—1.28 GPF for solid waste and 0.9 GPF for liquid waste. The smooth CEFIONTECT® glaze reduces the adhesion of waste and buildup, making the toilet easier to keep clean with less scrubbing.

Square Style, Customized Comfort

With its dual flush system and Universal Height, the Aquia IV Cube offers a water-efficient, user-friendly experience suited for any household. The two-piece construction provides additional installation flexibility, making it a great option for remodels and tighter spaces.

The integrated WASHLET+ S2 bidet seat offers key TOTO technologies—including continuous warm water cleansing, an adjustable heated seat, warm air dryer, and automatic deodorizer—all while concealing water and power lines for a polished, uncluttered finish.
This system comes equipped with TOTO’s PREMIST® feature, which mists the bowl before each use to help prevent residue from sticking. After every use, EWATER+® automatically sanitizes the bidet wand, inside and out, using electrolyzed water—keeping the system clean without the need for chemical cleaners.

With a skirted design that minimizes crevices and smooth ceramic surfaces throughout, the Aquia IV Cube WASHLET+ S2 helps reduce cleaning time and promotes everyday hygiene with minimal maintenance.

1 2

Easy-to-Use Controls for Every Preference

The WASHLET S2 is operated via a side-mounted control panel built into the seat. It puts essential functions within reach, including adjustable water pressure, nozzle position, temperature settings, oscillating and pulsating spray modes, and air dryer control—all accessible without a separate remote.

The fixed panel is durable, responsive, and easy to use for all ages. It’s ideal for users who prefer tactile controls over wireless remotes, with no setup or batteries required. The S2 prioritizes simplicity without compromising on core functionality.

Square Design, Universal Fit

The Aquia IV Cube WASHLET+ S2 delivers quiet sophistication through its gently rounded shape, efficient dual flush performance, and integrated smart bidet features. Designed for a standard 12" rough-in, it fits most standard bathrooms and is an excellent fit for design-conscious homeowners looking to balance performance, water savings, and daily comfort.

From clean aesthetics to intuitive usability, the Aquia IV Cube system reflects the next evolution in TOTO’s design-led, wellness-focused bathroom technology.

TOTO Aquia IV Cube Washlet+ S2 Features

Comfort & Convenience

Heated Seat: Provides adjustable warmth for year-round comfort.
Warm Air Dryer: Gently dries with multiple fan speed options.
Automatic Deodorizer: Removes odors to keep the bathroom fresh.
Nightlight: Illuminates the bowl with a soft LED glow at night.
SoftClose Lid & Seat: Quiet, slow-closing design prevents slamming.

Advanced Hygiene

Instant Warm Water: Tankless heater delivers continuous warm water on demand.
Dual-Action Spray: Oscillating and pulsating settings provide full cleansing coverage.
Front & Rear Wash: Customizable spray positions for user comfort.
Nozzle Adjustment: Reposition spray wand for precise reach.
Pressure Control: Fine-tune water pressure from gentle to strong.

Personalization & Control

EWATER+® Sanitization: Cleans the wand inside and out after every use.
PREMIST® Bowl Spray: Light mist coats the bowl before use to reduce buildup.
Quick-Release Seat: Easily removes for deeper cleaning access.
Fully Skirted Bowl: Conceals trapway and reduces grime-prone areas.
Antibacterial Surfaces: High-touch areas made with antimicrobial materials.

Smart Performance

Softened Cube Styling: Rounded, architectural shape enhances modern bathrooms.
Two-Piece Construction: Flexible for installation in a wide variety of layouts.
Universal Height: Provides seated comfort for a wide range of users.
12" Rough-In: Fits most standard bathroom layouts.
WASHLET+ Integration: Concealed connections preserve a clean, minimal profile.

Elegant & Thoughtful Design

1.28 & 0.9 GPF Dual Flush: Choose between full or partial flush to save water.
Tankless Heating: Heats only as needed, saving up to 38% energy.
Dryer Function: Reduces reliance on toilet paper for a more sustainable routine.
Auto Energy Saver: Automatically lowers seat temperature during periods of inactivity.
CEFIONTECT Glaze: Creates an ultra-smooth bowl surface to reduce cleaning frequency.

TOTO Aquia IV Cube Washlet+ S2 Installation

TOTO Washlet+ systems install like a classic toilet. There are only a few additional factors to consider:

Check the size of the rough-in in your bathroom (the distance from the finished wall behind your toilet to the center of the toilet drainpipe or flange). All Washlet+ models are designed for a 12" rough-in, but if you have another size, most models have adapters available.
Access to a standard GFCI electrical outlet is required for your Washlet to function.
Your Washlet will utilize the same water connection that fills the toilet's tank via an included T-valve.
See the video guide below for installation of your new Washlet+ system!