TOTO’s EWATER plus system helps keep both the wand and bowl fresh by rinsing them before and after each use.
PREMIST lightly coats the bowl surface to reduce buildup and simplify maintenance. An integrated air deodorizer and gentle nightlight support a cleaner and more comfortable bathroom environment.
The slim profile works well with most elongated toilets and installation is straightforward with included hardware.
An illuminated remote control holds up to four user presets, providing consistent and personalized settings with minimal effort.
Built for comfort, hygiene and reliability, the Washlet S7 offers a refined upgrade that elevates the overall bathroom experience.
Features
• EWATER plus cleans the wand and bowl before and after each use.
• PREMIST sprays the bowl surface to reduce residue.
• Heated seat with adjustable temperature.
• Instant warm water for continuous cleansing.
• Five spray modes with adjustable position, temperature and pressure.
• Warm air dryer with multiple settings.
• Automatic air deodorizer.
• Soft close lid.
• Nightlight for visibility in low light environments.
• Remote control with four user memory profiles.
• Compatible with standard elongated toilets and TOTO Washlet plus models.
• Mounting hardware included.
Specifications
• Shape: Elongated
• Material: Plastic
• Finish: Cotton White
• Length: 20.88 in
• Width: 15.13 in
• Height: 4.13 in
• Weight: approx. 14.5 lb
Manual or Downloads (PDF)
Product Specifications
Installation Manual
Parts Diagram
Warranty
Two year limited warranty
Frequently Asked Questions
1. Is my toilet compatible with the auto-flush feature?
The S7 is fully auto-flush compatible, but it requires a separate mechanical hardware kit installed inside your toilet tank to work. To use this feature:
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Toilet Requirement: You must have a compatible TOTO WASHLET+ (T40) toilet model. Standard non-TOTO toilets or standard TOTO models without the T40 design cannot accommodate the auto-flush motor.
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The Kit: You will need to purchase the specific TOTO Auto Flush Kit (typically THU857 for single-flush or THU855 for dual-flush models) that matches your toilet's flushing system.
2. How does the TOTO S7 compare to the TOTO S7A?
The only difference between these two models is automation.
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The "A" Factor: The "A" in S7A stands for Automatic. The S7A features a motion-activated lid that automatically opens as you approach the toilet and closes when you leave.
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The Standard S7: The standard S7 does not have a motion sensor; the lid must be opened and closed manually or via the remote control button. All other features—including the ultra-slim 4.06-inch profile, spray modes, and water heating—are completely identical.
3. What is the difference between the S7 and the S5?
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Sleeker, Flatter Profile: The S7 boasts an ultra-slim 4.06-inch frame with a silent skin-detection sensor, offering a flatter and roomier seating surface. The older S5 stands taller at 5.5 inches and uses a mechanical hinge sensor that makes a distinct "clicking" sound when you sit down.
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Premium Nozzle & Remote: The S7 upgrades to a telescoping nozzle that retracts entirely behind a protective door when not in use. It also features a high-gloss remote with dual infrared transmitters to eliminate signal dead zones, compared to the S5’s matte, single-transmitter remote.
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Dual-Zone Night Light: The S7 provides enhanced ambient lighting with illumination inside the bowl plus a secondary light strip along the side of the seat. The S5 features a single-zone light inside the bowl only.
4. Will it fit my toilet?
Before purchasing, you must check the bowl shape of your existing toilet. TOTO bidet seats are designed specifically to match individual toilet configurations:
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Elongated vs. Round: Measure from the center of the two mounting holes to the very front tip of your toilet bowl. An Elongated bowl measures approximately 18.5 inches.
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WASHLET+ Compatibility: If you want a completely seamless look with hidden cords and hoses, ensure your toilet is a TOTO WASHLET+ (T40) model designed to conceal these connections.
5. Do I need electricity?
Yes, TOTO electronic bidet seats require a standard, grounded electrical outlet to power the instantaneous water heater, heated seat, and air dryer:
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Power Requirements: You will need a GFCI outlet rated for 120V and 15 amps located within reach of the toilet.
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Cord Length: The integrated power cord is 4 feet long with a standard 3-prong plug.
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Circuit Protection: For safety and optimal performance, TOTO recommends plugging the seat into a dedicated circuit so it does not overload other bathroom electronics or lighting during use.
6. What is the difference between the Classic and Contemporary design?
The difference is purely aesthetic, both models offer the exact same internal features, remote control, and cleansing performance. The choice comes down to which look best matches your bathroom design:
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Contemporary Design: Features a completely smooth, flat, minimalist lid with zero beveling or ridges. The lid wraps entirely over the seat ring for a uniform, clean look that blends seamlessly into modern, minimalist bathrooms.
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Classic Design: Features a subtle, traditional trim or molded ridge around the top edge of the lid. It adds a touch of classic architectural detail that pairs perfectly with traditional or transitional bathroom fixtures.
