TOTO Aquia IV 1G Washlet+ S550e Universal Height Two-Piece Toilet – 1.0 GPF and 0.8 GPF

TOTO Aquia IV 1G Washlet+ S550e Universal Height Two-Piece Toilet – 1.0 GPF and 0.8 GPF

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Aquia IV 1G Washlet+ S550e Universal Height Two-Piece Toilet – 1.0 GPF and 0.8 GPF

The Aquia IV 1G Washlet+ S550e Two-Piece Toilet by TOTO seamlessly merges an elegant, high-quality toilet with a feature packed bidet seat. The cords and hoses of most bidet seats remain visible, but the connections of the S550e bidet seat included in this Washlet+ system are completely hidden thanks to the toilet’s special design. However, do know 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 a stylish chrome push-button flush mechanism. TOTO’s DynaMax Tornado Flush system forcefully sweeps through even the hardest to reach areas of the bowl, and the water flow configuration creates a quiet flush. Two flush options (1.0 GPF or 0.8 GPF) reduce water usage, and the ceramic bowl is coated with TOTO’s CeFiONtect glaze to prevent waste from sticking. What’s more, this toilet is a universal height, meaning that it’s a bit taller than standard height toilets and is easier for users with mobility limitations to access.

The S550e bidet seat included in this Washlet+ system comes with four wash modes (rear, rear soft, front and wide front) and an instant water heater that provides unlimited warm wash water. Even better, all the bidet settings are adjustable, so you can select your optimal seat temperature, water temperature and pressure, and warm air dryer temperature. The oscillating spray option increases wash coverage by moving the wand in a relaxing, back and forth motion, while the pulsating spray option helps stimulate the bowels and soothe tender areas. In addition, the aerated wash stream gently increases wash effectiveness. The seat also comes with a built-in nightlight to aid in moving around the bathroom in the dark, and the automatic deodorizer keeps your restroom smelling fresh. The seat is operated via remote control, and it can even be programmed with the favorite settings of two users for a one-button wash and dry experience. Keeping the S550e clean is easy thanks to the premisting feature, which coats the bowl with a thin film of water prior to use to discourage waste from sticking, and the S550e’s nozzles self-sterilize after each use with electrolyzed water.

With its high-end look, universal height, and wide array of features, the Aquia IV 1G Washlet+ S550e will upgrade your bathroom's look and take your your restroom routine to a whole new level.

  • 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 premisting 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
  • Auto open/close lid
  • 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 1G Washlet+ S550e Universal Height Two-Piece Toilet in CottonWhiteMW4463056CUMFG(#01)

TOTO Elongated Bowl with CeFiONtect– CT446CUFGT40

TOTO Tank and Cover – ST446UM

TOTO Washlet S550e with Contemporary Design – SW3056T40

TOTO Washlet Adapter – 9AU321-A

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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