Upgrade Your Bathroom with TOTO’s New 2026 Washlet S1 - Elongated

Experience the latest evolution of personal cleansing with the all-new S1 Washlet from TOTO (SW2326#01). Released in 2026, this premium bidet seat combines continuous warm water cleansing, a heated seat, self-cleaning technology, and CLEAN RESIN® protection in a refined, easy-to-use design. With advanced comfort features and TOTO's trusted commitment to cleanliness, the S1 transforms an everyday routine into a more luxurious bathroom experience.

Key Features

Advanced Personal Cleansing

Experience a spa-like cleanse with gentle aerated warm water sprays for both front and rear washing, featuring adjustable pressure along with oscillating and pulsating functions. Customizable temperature settings for both the water and heated seat allow users to tailor comfort to their preferences, while the integrated warm air dryer provides a complete cleansing routine without the need for toilet paper.

CLEAN RESIN®

TOTO's Clean Resin® material helps keep your Washlet spotless between cleanings by resisting the buildup of dirt, waste, and stains. An anti-fouling component is embedded directly into the resin, creating a protective surface that makes debris less likely to stick and easier to wipe away. By making surfaces less likely to attract and hold debris, the S1 stays cleaner and more hygienic while reducing the need for routine maintenance.

Convenient Side Arm Control

The integrated side arm control places essential Washlet functions within easy reach, allowing users to adjust cleansing settings with simple, intuitive controls. Designed for everyday convenience, the streamlined control panel provides quick access to wash functions, water temperature, pressure adjustments, and other comfort features without the need for a separate remote.

Universal Elongated Fit

Designed to fit most standard elongated toilet bowls, this Washlet offers a simple upgrade path for a wide range of bathroom applications. Compatibility with many TOTO and non-TOTO elongated toilets makes installation straightforward while allowing users to enjoy advanced bidet functionality without replacing their existing fixture.

Product Details

• Electronic bidet seat
• 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
• Gentle aerated, warm water, front and rear spray with oscillating and pulsating features
• Adjustable spray position, water temperature, and water pressure
• Instantaneous water heater for continuous warm water and energy savings
• Convenient arm control panel
• Heated seat with temperature control
• Seamless seat design eliminates the gap where dirt collects
• SoftClose® seat
• Docking station for easy cleaning and installation
• Auto energy saver mode adjusts the seat temperature when inactive
• Compatible with most elongated toilets
• One Year Limited Warranty

Since 1917, TOTO has been a global leader in bathroom innovation, known for superior quality, comfort, and design. Every Japanese toilet is crafted to elevate daily routines, delivering lasting performance and a refined, spa-like experience you'll appreciate every day.

Additional Details

• Brand: TOTO
• MPN: SW2326#01
• Line: S1
• Power rating: AC 120, 60 Hz
• Power consumption: 1023 W
• Max Power Consumption: 1131 W
• Power Cord Length: 3.9 ft (1.2 m)
• Spray Volume: 0.07 – 0.11 gal/min rear cleansing, 0.07 – 0.11 gal/min front cleansing
• Spray Features: 95ºF - 104ºF (35ºC - 40ºC) adjustable surface temp and Temperature Fuse Safety Device
• Heated Seat Features: 82ºF - 97ºF (28ºC - 36ºC) adjustable surface temp and Temperature Fuse Safety Device
• Water Supply Pressure: Minimum 7.25 PSI (flowing), maximum: 108.75 PSI (static)
• Ambient Temp.: 32°F - 104°F (0°C - 40°C)

Read our article to learn more about the new products TOTO’s released in June 2026! 

TOTO Washlet S1 FAQ

What’s the difference between the TOTO Washlet S1 and a traditional bidet seat?

The TOTO Washlet S1 combines warm water cleansing, a heated seat, adjustable spray settings, and self-cleaning technology in one easy-to-install bidet seat. Unlike basic bidets, it offers customizable comfort and enhanced hygiene features designed for everyday use.

Does the TOTO Washlet S1 provide unlimited warm water?

Yes. The SW2326#01 features an instantaneous water heater that delivers continuous warm water during use without relying on a storage tank, providing greater comfort and improved energy efficiency.

Will the TOTO Washlet S1 fit my toilet?

The Washlet S1 is designed to fit most standard elongated toilet bowls, including many TOTO and non-TOTO models. To verify your toilet's shape and dimensions before purchasing, call our customer service team at 888-682-5956 (toll-free)!

How does the self-cleaning wand work?

TOTO’s spray wand automatically rinses itself before and after each use, which significantly reduces buildup and manual cleaning. Combined with CLEAN RESIN® surfaces, it helps maintain a much higher baseline of hygiene compared to standard bidet attachments.

Is the TOTO Washlet S1 easy to install?

Yes. The Washlet S1 includes a docking station and is designed for straightforward installation on compatible elongated toilets. Most installations can be completed using standard household tools and an electrical outlet nearby.

Weight	14.6 lb
Collection	Washlet
Color	White
Finish	Cotton
Finish Type	Polished
Height	6.63 in.
Length	21.00 in.
Material	Plastic
Night Light	No
Room	Bathroom
Shape	Elongated
Type	Elongated
Voltage	120V
Width	15.00 in.
Inventory Number	TOTSW2326-01
MPN	SW2326#01
Auto Close	No

• Spec Sheet