TOTO Supreme II WASHLET+ S300e One-Piece Toilet and Bidet System - 1.28 GPF

TOTO Supreme II WASHLET+ S300e One-Piece Toilet and Bidet System - 1.28 GPF

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Supreme II WASHLET+ S300e One-Piece Toilet and Bidet System - 1.28 GPF

Built with both style and function in mind, TOTO’s Supreme II WASHLET+ S300e toilet and bidet system is sure to take your bathroom experience from ordinary to extraordinary. The Supreme II toilet itself is a one-piece, ADA compliant (universal height) unit and comes with TOTO’s signature Tornado Flush technology and CeFiONtect bowl glaze, both of which work together to deter residue from sticking. TOTO specially designed it to hide the cords and hoses of the S300e WASHLET+ bidet seat for an extra-sleek look. Do note that because of this special design, the S300e WASHLET that is included in the purchase of this system isn’t compatible with non-WASHLET+ toilets. 

The S300e WASHLET+ is packed with high-end features that deliver all the comforts and conveniences you could want. As someone sits down to use the restroom, the S300e automatically coats the toilet’s bowl with a thin layer of sterile water to help prevent any waste residue from sticking. Four wash modes (front, wide front, rear and soft rear) offer a solution for every bathroom situation, and the unit’s water pressure, wand position, water temperature and seat temperature are all adjustable for maximum user comfort. What’s more, the S300e’s instant water heater provides unlimited warm water, so you don’t need to worry about running out no matter how long you run the wash cycle. Oscillating and pulsating spray options provide additional soothing for tender areas and can even help stimulate the bowels, and the wash stream is infused with tiny bubbles for a gentle, yet effective, cleanse. The S300e’s warm air dryer has adjustable temperature settings and can serve as a stand-in for abrasive toilet paper, if you so desire, and the built-in deodorizer automatically chases away bathroom odors each time the unit is used. Furthermore, after each use, the S300e uses sterile, electrolyzed water (EWATER+) to sanitize the nozzles. As an added convenience, the S300e gives users the option of programming their favorite wash settings into the wireless remote as an alternative to selecting them manually each time.

The Supreme II WASHLET+ S300e toilet and bidet system features a great look and delivers a truly fantastic wash and dry experience, making it an excellent choice for anyone looking to revolutionize their bathroom routine.



  • Purchase includes toilet and WASHLET
  • Powerful Tornado Flush system – single flush, 1.28 GPF
  • CeFiONtect glaze and PREMIST feature stop residue from sticking to bowl
  • Universal height and ADA compliant
  • WASHLET features a dual action spray with four wash modes: front, wide front, rear, soft rear
  • Adjustable wand position, water pressure and water temperature
  • Oscillating and pulsating spray options
  • Soothing, aerated wash stream provides superior relaxation and cleansing 
  • Instant water heater provides unlimited warm water
  • Warm air dryer with five temperature settings
  • Adjustable heated seat
  • Automatic deodorizer
  • Energy saving mode
  • Two programmable user presets
  • Soft closing lid
  • Operated via remote control
  • WASHLET uses EWATER+ to PREMIST the bowl and automatically sanitize the nozzles after each use
  • Comes in white
  • Elongated bowl and seat
  • 1 year warranty


Additional Information

Model Number(s):

TOTO Supreme II WASHLET+ S300e One-Piece Toilet and Bidet System (1.28 GPF) – MW634574CEFG#01

TOTO Supreme II Toilet – CST634CEFGT20

TOTO S300e WASHLET+ - SW574T20 (only fits TOTO’s WASHLET+ toilets)



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The TOTO Washlet+ comes with a 1 year full warranty for residential use, and a 1 year full warranty for units installed for commercial use.


We cover tax at the prices quoted, so no need to worry about a surprise tax fee added on during checkout, we've got you covered!


We also pay for shipping, so the price you see is the price you get!

TOTO Washlet+ units ship via freight, and ships on a pallet.  The shipper will call you when the unit is in your area and ready to be delivered. This allows you to schedule delivery, so you don't need to worry about it being delivered when you're not home.  Because toilet bowls are fragile, we recommend looking over the unit quickly when it arrives.  It's very rare for anything to be cracked, but it has happened.  We see about a 5% break rate, meaning about 1 in 20 have damage. When the unit arrives, look it over before signing for it. If anything is broken, don't sign for the package. Instead, take pictures and email them to or text them to 248-974-4030, and refuse delivery. This allows us to file a claim with the shipper and get another one out to you within 24 hours.


Because of the fragile nature of toilet bowls, returning one is a tricky process.  Should a return be required on your Washlet+ unit, TOTO requires that it be shipped back via freight, and shipped back on a pallet.  TOTO also charges a restocking fee of 30%, and will not cover shipping either way. TOTO also requires that the unit come back in 100% brand new condition. If the unit comes back in any condition other than 100% brand new, resellable condition, no refund of any sort will be issued.

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