Toto

TOTO Aquia IV Cube Washlet+ S5 Two-Piece 1.28 & .9 Gpf

SKU: MW4363446CEMFGN#01

Regular price: Price: $1,385.00
Regular price: List Price: $1,978.00
Sale price: Price: $1,385.00
Unit price: per

Rough-In Size 12" 10" 14"

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Sharp Design. Smart Hygiene.

The TOTO Aquia IV Cube WASHLET+ S5 Two-Piece Toilet combines refined, rounded geometry with premium, customizable comfort. The “Cube” version of the Aquia IV softens angular lines into smooth, modern contours—creating a versatile look that blends well in both minimalist and transitional spaces. Fully skirted with concealed supply lines, this two-piece toilet offers a clean, sophisticated profile from any angle.

Equipped with DYNAMAX TORNADO FLUSH®, the system offers dual flushing at 1.28 GPF and 0.9 GPF for water-saving performance without sacrificing power. The CEFIONTECT® glaze reduces debris adhesion, helping the bowl stay cleaner between flushes with less maintenance.

Modern Lines. Personalized Features.

The two-piece design allows for easier transport and installation, especially in remodeling scenarios or tight spaces. It uses a 12" rough-in by default, but optional UniFit® adapters are available to accommodate 10" or 14" installations. The Universal Height bowl ensures ergonomic seating comfort for most adults.

With the WASHLET+ S5 integrated, both power and water connections are hidden for a sleek, built-in appearance. The S5 brings advanced comfort features such as instantaneous warm water, a heated seat, warm air dryer, and an automatic deodorizer, all wrapped into a slim, low-profile bidet seat.
Cleanliness starts before every use with PREMIST®, which lightly coats the bowl surface with water to help prevent sticking. After use, EWATER+® automatically sanitizes the wand with electrolyzed water, both inside and out—helping eliminate bacteria and reduce manual cleaning.

The Aquia IV Cube’s skirted base removes hard-to-clean crevices, and the seamless integration of the WASHLET+ system eliminates exposed plumbing lines, further streamlining upkeep and maximizing hygiene.

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Remote-Controlled Comfort

The WASHLET S5 is operated via a wireless remote control, allowing users to fully customize their experience. You can adjust water temperature, spray pressure, nozzle position, and switch between oscillating or pulsating spray modes. Additional functions like the air dryer, heated seat, nightlight, and deodorizer are also remote-controlled.

For shared bathrooms, the S5 includes four programmable user presets, letting each household member save and recall their preferred settings. The remote is sleek and intuitive, and it can be mounted to the wall or used handheld—ideal for maximizing both convenience and usability.

Architectural Form. Flexible Fit.

The Aquia IV Cube WASHLET+ S5 is the perfect fusion of soft-edged style and advanced functionality. Its modern curves and space-saving profile make it an elegant choice for design-conscious homeowners. Designed for everyday convenience and built with sustainability in mind, it offers both dual flush water savings and a tankless, energy-efficient heater.

With a fully integrated WASHLET system, customizable bidet features, and minimal upkeep required, this two-piece toilet offers lasting performance in a form that enhances any modern bathroom.

TOTO Aquia IV Cube Washlet+ S5 Features

Comfort & Convenience

Heated Seat: Adjustable warmth provides all-season comfort.
Warm Air Dryer: Offers hands-free drying with multiple airflow settings.
Automatic Deodorizer: Neutralizes odors immediately after use.
Nightlight: Soft LED glow lights the bowl for nighttime visibility.
SoftClose Seat & Lid: Prevents slamming and extends hardware life.

Advanced Hygiene

Continuous Warm Water: Tankless heating provides unlimited cleansing water on demand.
Oscillating & Pulsating Spray: Dual-action cleaning options for comfort and effectiveness.
Front & Rear Wash Modes: Separate settings for full personal hygiene support.
Custom Nozzle Positioning: Adjust to fit your exact preferences.
Adjustable Pressure & Temp: Fine-tune both pressure and temperature via remote.

Personalization & Control

EWATER+® Nozzle Sanitization: Cleans wand inside and out before and after each use.
PREMIST® Bowl Mist: Pre-wets the bowl to prevent waste from sticking.
Quick-Release Seat: Easily removes for deep cleaning access.
Skirted Design: Minimizes hard-to-clean surfaces and improves hygiene.
Antibacterial Materials: Used on high-contact surfaces to reduce bacteria growth.

Smart Performance

Softened Cube Aesthetic: Rounded, geometric design with a clean architectural feel.
Two-Piece Construction: Easier to move and install, especially in renovations.
Universal Height: Comfortably suited for most adults.
10", 12", or 14" Rough-In Options: Flexible installation with UniFit adapters.
WASHLET+ Integration: Conceals plumbing for a tidy, built-in look.

Elegant & Thoughtful Design

Wireless Remote Control: Full-feature control at your fingertips.
4 User Presets: Save custom settings for multiple users.
1.28 & 0.9 GPF Dual Flush: Choose the right flush every time to save water.
Auto Energy Saver Mode: Reduces power draw during inactivity.
CEFIONTECT® Glaze: Super-smooth ceramic resists waste and reduces cleaning needs.

TOTO Aquia IV Cube Washlet+ S5 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!