TOTO
TOTO Aquia IV One-Piece Dual Flush 1.28 and 0.9 GPF Universal Height Toilet S5 Bidet Seat MW6463446CEMFGN#01
TOTO Aquia IV One-Piece Dual Flush 1.28 and 0.9 GPF Universal Height Toilet S5 Bidet Seat MW6463446CEMFGN#01
Model: MW6463446CEMFGN#01
- Regular price
- Price: $1,659.00
- Regular price
- List Price: $2,369.00
- Sale price
- Price: $1,659.00
- Unit price
- per
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PRODUCT DESCRIPTION
TOTO Aquia IV One-Piece Toilet with WASHLET S5 Bidet Seat
The TOTO T40 WASHLET+ Aquia IV combines a sleek, one-piece design with advanced bidet technology for a clean, modern, and comfortable bathroom experience. The WASHLET+ system conceals the power cord and water supply hose, creating a seamless, clutter-free look that complements any bathroom style.
Also available in Sedona Beige: prefer a warm beige finish? Get this same pairing as the TOTO Aquia IV S5 WASHLET+ bidet toilet combo in Sedona Beige.
Smart Comfort Meets Modern Design
Paired with the newly redesigned WASHLET S5 bidet seat, this model offers a luxurious upgrade to your daily routine. Enjoy adjustable front, rear, and soft rear washes with oscillating and pulsating spray modes—all controlled from a slim, wireless remote. Each function features five temperature and pressure levels for personalized comfort.
The S5’s heated SoftClose® seat keeps you warm year-round, while the built-in nightlight softly illuminates the bowl for easy use in low light. A warm air dryer and deodorizer complete the experience, reducing toilet paper use and maintaining freshness.
Advanced Hygiene with EWATER+® and PREMIST®
The PREMIST® function sprays the bowl before each use to help waste rinse away easily. After each wash, EWATER+® automatically cleans the wand inside and out—no chemicals required. This self-cleaning system keeps your toilet fresh, hygienic, and low-maintenance day after day.
Powerful and Efficient Flushing
The Aquia IV toilet features TOTO’s DYNAMAX TORNADO FLUSH®, delivering 360° cleaning power that reaches every part of the bowl. The CEFIONTECT glaze prevents waste from sticking, reducing the need for scrubbing and harsh cleaners. Choose between a 1.28 GPF full flush or a 0.9 GPF light flush using the chrome dual push button for efficient water conservation.
Designed for Every Home
Built at TOTO’s Universal Height for optimal comfort, the Aquia IV’s skirted one-piece design eliminates gaps between the tank and bowl—making cleaning simple and fast. It installs easily with a 12" rough-in and can be adapted for 10" or 14" rough-ins with optional parts (sold separately).
Key Toilet Features
- One-piece design with concealed WASHLET+ connections
- DYNAMAX TORNADO FLUSH® for powerful 360° cleaning
- Dual flush: 1.28 and 0.9 GPF options
- CEFIONTECT ceramic glaze prevents waste buildup
- Universal Height for comfortable seating
- Chrome top-mounted push button
- ADA, WaterSense®, CALGreen, and CEC compliant
- 12" rough-in (adapters available for 10" or 14")
Key WASHLET S5 Features
- Instant warm water with front, rear, and soft rear washes
- EWATER+® and PREMIST® for automated cleanliness
- Adjustable water pressure, temperature, and spray position
- Heated SoftClose® seat with five temperature levels
- Warm air dryer and automatic deodorizer
- Built-in nightlight for nighttime visibility
- Wireless remote with up to four personalized settings
- Seamless seat design for easier cleaning
- Auto energy saver mode for efficiency
- Docking station for quick installation and removal
Complete Comfort, Clean Design
The TOTO T40 WASHLET+ Aquia IV with S5 Bidet Seat delivers the perfect balance of technology, cleanliness, and style. From its hidden connections to its self-cleaning systems, this model redefines what a modern toilet can be—efficient, elegant, and exceptionally comfortable.
Warranty: Because we are a TOTO Authorized Dealer, you are entitled to their standard 1 Year Limited Warranty.
There are plenty of resources to help you pick the right bidet, install it and maintain it for years to come. Remember, you can always reach out to us with any questions.
Questions & Answers
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Let customers speak for us
Is a great product, easy install, ran into some shipping issues but folks at Everflow were great to work with, they ultimately got things resolved so that I received the product in a timely manner.
TOTO S2 Electronic Bidet Toilet Seat
If you’re looking for best-in-class customer service, this is your place. EverFlow has earned my business for life.
We ordered a high-end bidet from EverFlow about two weeks ago, and the product showed up within days, not weeks. Unfortunately, the courier damaged it during transit. I was pretty nervous about what dealing with customer service on an issue like this was going to look like.
Much to my surprise, when I called, I ended up speaking directly with the owner of the company. He was incredibly kind, apologetic, and genuinely concerned about making the situation right. There was no runaround and no arguing over whose fault it was. He simply took ownership of the problem and immediately got a replacement unit on the road.
From the original order to receiving the replacement, the entire process took barely over two weeks.
That is one of the most impressive customer service experiences I’ve had in a long time. Problems happen, especially when third-party freight companies are involved. What separates great companies is how they respond when something goes wrong.
EverFlow absolutely nailed it. They’ve earned a customer for life.
Neal, the owner of Everflow Bidets was a huge help picking out the best choice for me. He answered the phone personally on Saturday morning and we had several conversations to arrive at the best choice. Best customer service I have experienced in a very long time.
Replaced all 4 toilets in our home and all are performing identically after more than 6 months in service -- a testament to the product's overall quality control. Control panel is easy to navigate for daily use while "set & forget" functions (seat heat & energy savings settings, night light, etc.) require reference to the owner's manual. Neal was refreshingly informative and even passed some bulk shipment savings on to us for the palletized arrival. Couldn't be happier!
TOTO S5 Electronic Bidet Toilet Seat
Have really enjoyed my bidet ever since it was installed. Especially during the winter months.
Very good service provided by Mr. Niel. Highly recommend their products and services . I would definitely go back for future purchases.
I didn’t know a toilet could change my worldview, but then I met the TOTO S7A Washlet.
This is not merely a bidet. It is a tiny, porcelain-adjacent butler who appears to have been trained at a five-star Japanese spa. The seat warms itself. The lid opens like the arrival of royalty. A gentle pre-mist prepares the porcelain. And then, when the moment arrives, a perfectly aimed stream of warm water performs its exceedingly dignified work.
There are settings. So many settings. At this point, I am less concerned with “going to the bathroom” than I am with curating an experience.
The heated seat alone feels like a small act of civilization. The deodorizer quietly handles the evidence. The dryer offers a dignified conclusion. And the whole production happens with such technological confidence that you begin to wonder why the rest of your house isn’t also operated by a Japanese engineer with impeccable manners.
The S7A has ruined ordinary toilets for me. A conventional toilet now feels like a primitive ceramic bucket—an artifact from an era when humanity apparently believed wiping with dry paper was the pinnacle of sanitation.
Five stars.
Ten if the bathroom had them.
TOTO S7A: because once your throne has heated seating, a spa-quality wash, and an automatic lid, civilization has officially peaked.
A new shoulder on March 4 2026 and the first bidet installed three days prior. The second one two weeks after the surgery. Both work perfectly. Thinking about putting one in our second home in Calistoga. Highly recommend a bidet.
Bought 2 of these and love them! Couldn't be happier and love all the features they offer... especially love the personal settings!
So far so good. Neal was very helpful when we called with questions. Install went smoothly. Does this come with a remote?
Growing up i am used to use water to clean the tushy and moving to US was a challenge as there is now hand shower or wet wipes. Once i got to know this bidet exists, i bought them. I changed every bothroom and now my kids don’t want to use toilet anywhere else as the seats keeps you warm especially in cold new england winter nights and cleans you thoroughly. 6 years and still working as new!
After travelling to Japan for vacation a couple of years ago and seeing TOTO bidet toilets everywhere, we decided that we needed one of them in the home we were moving to last year. TOTO is a proven high-quality name and we chose to settle for nothing less for a product we'll be using daily for the foreseeable future. We were fortunate to find Everflow, which provided us with the model we wanted at a great price and delivery timing. We couldn't be happier with having chosen Everflow and TOTO.
I’m so pleased with my smart toilet, washes, dries and saves me a lot of toilet paper.
It’s a very worthwhile and reasonable luxury.
