The Washlet S550e features TOTO's advanced eWater system which uses electrolyzed water, transforming the water into a disinfecting compound. By misting the bowl after every use, the eWater technology helps keep your toilet bowl clean and hygienic without harsh chemicals. The Premist function sprays the bowl before each use to prevent waste buildup, keeping the bowl clean.

The TOTO Washlet S550e is operated by an illuminated touch pad remote with 2 user memory to save preferred settings. The Washlet features 5 spray settings, auto open and close lid, heated seat, a nightlight, as well as instantaneous water heating. The newly redesigned lid style is flush with the toilet bowl, providing a clean modern look.

The sleek tank design coupled with the skirted bowl create a sophisticated look and minimizes the need to reach behind the bowl to clean in between the nooks and crannies of the exterior trapway. The Universal Height design allows for a more comfortable seat position across a wide range of users.

The Aquia IV features TOTO's DynaMax Tornado Flushing System, utilizing a 360 degree cleaning power to reach every part of the bowl. This version of the Aquia IV includes CEFIONTECT, a layer of exceptionally smooth glaze that prevents particles from adhering to the ceramic.

CEFIONTECT, eWater, and DynaMax Tornado Flush create a synergy that optimizes flushing performance to reduce the frequency of toilet cleanings, minimizing the usage of water, harsh chemicals, and time required for cleaning. The enhanced design of the Aquia IV inner bowl reduces water flow resistance and turbulence, resulting in a quieter flush.

The Aquia IV Cube allows you to proactively conserve water by choosing between a 0.8 GPF or a 1.28 GPF flushes. Comes ready for installation into a 12" rough-in, but may be adapted for a 10" or 14" rough-in with the purchase of a separately sold adapter. Additional items needed for installation must be purchased separately: wax ring, toilet mounting bolts, and toilet water supply lines.


TOTO MW4363056CEMFG#01 Aquia IV Cube Two-Piece Dual Flush Elongated Toilet and Washlet+ S550E in Cotton White

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TOTO MW4363056CEMFG#01 Aquia IV Cube Two-Piece 1.28 GPF & 0.8 GPF Dual Flush Elongated Toilet and Washlet+ S550E in Cotton White

TOTO MW4363056CEMFG#01 Aquia IV Cube Toilet & Washlet Combo Features

  • High-tech electronic bidet seat and toilet combination
  • System includes toilet and Washlet
  • Concealed supply connection for seamless installation
  • Ultra high-efficiency DynaMax Tornado Flushing system
  • CEFIONTECT ceramic glaze prevents debris and mold for sticking to ceramic surfaces
  • Skirted Design
  • Non-clog 2.5" trapway with clear glaze coating
  • Quiet Flush
  • Dual Flush operation
  • Universal Height
  • 12" Rough-in (optional 10" & 14" rough-in)
  • Elongated front Washlet toilet seat with cover
  • EWATER+ on wand and bowl
  • PREMIST of bowl before use
  • Remote control operated
  • Front and rear warm water cleansing with adjustable temperature and pressure control
  • Heated seat with temperature control
  • Automatic air deodorizer
  • Warm Air Dryer
  • Auto Open/Close
  • Night Light
  • 2 User memory
  • Quick release feature
  • Chrome trip lever
  • Auto Flush option available

TOTO MW4363056CEMFG#01 Aquia IV Cube Support Files

CAD Drawing - MW4363056CEMFG
Spec Sheet - MW4363056CEMFG(A)
Installation Manual - MW4363056CEMFG
Spare Parts Manual - MW4363056CEMFGA

TOTO