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

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

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

The TOTO Aquia IV WASHLET+ S500e Two-Piece Toilet pairs the S500e Contemporary Design WASHLET bidet seat with the Aquia IV toilet, which is specially designed to hide the S500e’s hoses and connections. Both the bidet seat and the toilet are included in the purchase price, though it’s important to note that this toilet is only designed to conceal the S550e WASHLET’s cords and hoses. In other words, if you choose to buy a different bidet seat later, the cords and hoses will be visible.

The toilet itself comes with TOTO’s powerful DynaMax Tornado Flush system, two flush options (1.28 GPF or 0.8 GPF) that saves on water, and a specially designed bowl with CeFiONtect glaze that facilitates a quiet flush and deters residue from sticking. The toilet also features an attractive, skirted design that is easy to keep clean and a stylish, push-button flush mechanism.

You’ll get a host of great features with the S500e WASHLET, including four wash modes (rear, soft rear, front and wide front) with adjustable water temperature and pressure, a heated seat, a warm air dryer, and an automatic deodorizer that eliminates bathroom smells at the source. The built-in nightlight makes it easier and safer to use the restroom in low light, and two user presets enable you to pre-program your favorite wash settings for a completely customized cleanse at the touch of a button. The seat is also equipped with PREMIST, which coats the bowl with a thin film of water before each use to stop residue from sticking, and it uses electrolyzed water (EWATER+) to sanitize the wand and nozzles after each use. It’s easy to select wash settings thanks to the sleek, easy to use remote, and the seat’s energy saving mode cuts down on the amount of electricity it uses for maximum efficiency. 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.

The TOTO Aquia IV WASHLET+ S500e Two-Piece Toilet offers quality, function and style in one great unit. 



  • System comes with toilet and WASHLET
  • Elegant, skirted toilet design is easy to keep clean
  • Powerful Tornado Flush system
  • CeFiONtect glaze and PREMIST feature stop residue from sticking
  • WASHLET features a dual action spray with four wash modes: rear, soft rear, front and wide front
  • 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
  • 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
  • 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 Two-Piece Toilet in Cotton WhiteMW4463046CEMG(#01)

TOTO Aquia IV WASHLET+ S500e Two-Piece Toilet with Auto Flushing in Cotton White – MW4463046CEMGA(#01)

TOTO Elongated Bowl with CeFiONtect– CT446CUGT40

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



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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 support@manybidets.com 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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