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TOTO Aquia IV WASHLET+ S500e Universal Height Two-Piece Toilet - 1.28 GPF & 0.8 GPF

TOTO Aquia IV WASHLET+ S500e Universal Height Two-Piece Toilet - 1.28 GPF & 0.8 GPF

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Aquia IV WASHLET+ S500e Universal Height Two-Piece Toilet - 1.28 GPF & 0.8 GPF

The Aquia IV WASHLET+ S500e Universal Height Two Piece toilet and bidet by TOTO provides efficiency, accessibility and performance in one great unit. While the cords and water connections of most bidet seats are visible, the toilet and bidet seat included in this WASHLET+ system are perfectly designed to keep the wires and hoses out of view for a sleek, streamlined look. Keep in mind, however, that this design feature doesn’t extend to other bidet seats, meaning that if you choose to buy a different seat in the future, the cords and hoses will be visible.

The high-quality toilet included in this WASHLET+ system features an elegant, skirted design and comes equipped with TOTO’s powerful, yet quiet and efficient, DynaMax Tornado Flush system. Two flush options (1.28 GPF or 0.8 GPF) provide excellent water efficiency, and the ceramic bowl is coated with TOTO’s CeFiONtect glaze that helps keep residue from sticking. The contemporary chrome push-button flush mechanism is easy to operate and enhances the toilet’s overall style factor. It’s also a universal height, making it easier for users with mobility difficulties to access.

The S500e bidet seat included in this WASHLET+ system offers four wash modes (rear, rear soft, front and wide front), oscillating and pulsating spray options, unlimited warm water for washing, an adjustable heated seat, and a warm air dryer with adjustable temperature settings for maximum comfort. In addition, the water temperature and pressure are both adjustable, and the wash stream is aerated for increased cleansing power. A built-in deodorizer automatically eliminates embarrassing bathroom odors, and the nightlight makes it easier to navigate the restroom in low light. The seat is operated via remote control, which can be pre-programmed with the preferred settings of up to two users so that you don’t have to select your favorite wash options every time. Finally, the S500e comes with TOTO’s PREMIST feature, which coats the bowl with a thin film of water prior to use to discourage waste from sticking. As an additional hygiene measure, the S500e’s nozzles self-sterilize after each use with EWATER+ (electrolyzed water). Last but not least, this system is available in both non-auto flushing and auto-flushing models, the latter of which flushes the toilet when a user stands up and moves away from the unit.

With its amazing features and universal height, the Aquia IV WASHLET+ S500e will transform your bathroom from ordinary to extraordinary!



  • Purchase includes toilet and WASHLET
  • Elegant, skirted toilet is easy to keep clean
  • Ultra-powerful DynaMax Tornado Flush system with chrome push button
  • Quiet, high-efficiency dual flush (1.0 GPF or 0.8 GPF)
  • CeFiONtect glaze and PREMIST feature stop residue from sticking to bowl
  • 2.5” trapway with clear glaze helps prevent clogs
  • Universal height for greater accessibility
  • WASHLET features a dual action spray with four wash modes
  • Oscillating and pulsating spray options
  • Soothing, aerated wash stream provides superior relaxation and cleansing 
  • Instant water heating system ensures unlimited warm wash water
  • Adjustable water temperature and pressure
  • Warm air dryer with five temperature settings
  • Adjustable heated seat with quick release feature for easy cleaning
  • Automatic deodorizer
  • Built in nightlight
  • Energy saving mode
  • Two programmable user presets
  • EWATER+ automatically sterilizes the bowl and wand with each use
  • Wireless remote control
  • Available in non-auto-flushing and auto-flushing models
  • Comes in white
  • Elongated bowl and seat
  • 12” rough-in (10” and 14” rough-in unifit components can be purchased separately)
  • 1 year warranty


Additional Information

Model Number(s)

TOTO Aquia IV WASHLET+ S500e Universal Height Two-Piece Toilet in Cotton WhiteMW4463046CEMFG(#01)

TOTO Aquia IV WASHLET+ S500e Universal Height Two-Piece Toilet with Auto Flushing in Cotton White – MW4463046CEMFGA(#01)

TOTO Elongated Bowl with CeFiONtect– CT446CUFGT40

TOTO Tank and Cover – ST446EM

TOTO WASHLET S550e with Contemporary Design, non Auto Flush Compatible – SW3046T40

TOTO WASHLET S550e with Contemporary Design, Auto Flush Compatible – SW3046AT40

TOTO WASHLET Adapter – 9AU321-A

TOTO Auto Flush Kit – THU765

Optional Unifit 10” Rough-In (Sold Separately) – TSU08W.10

Optional Unifit 14” Rough-In (Sold Separately) – TSU08W.14

Push Button Assembly in Cotton White (Sold Separately) – THU735#01-A

Push Button Assembly in Polished Nickel (Sold Separately) – THU735#PN-A

Push Button Assembly (Sold Separately) – THU735#BN-A



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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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