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Is the TOTO S550e Universal for any Toilet Seat?

The TOTO S550e Washlet is an ultra high-end, luxury bidet seat from TOTO. It is a wonderful product, however, it is not compatible with all toilets. Therefore, before you make your purchase, you will want to make certain it fits your particular toilet design. In general, the TOTO S550e is most likely to be compatible with most elongated toilets.  But let’s get more specific.

Here is a comprehensive list from TOTO’s website of its toilets that are compatible with the S550e. Remember - the below list contains all TOTO brand toiletshttps://www.totousa.com/filemanager_uploads/PPW%20Articles/2017-washlet-fit-chart.pdf

Starting with one-piece, elongated toilets, the TOTO S550e is compatible with these TOTO models:

  • Aimes
  • Aquia
  • Aquia IV
  • Carolina II
  • Carlyle II/ II 1G
  • Guinevere
  • Legato
  • Lloyd
  • Promenade II / II 1G
  • Soiree
  • Supreme
  • Supreme II
  • Ultimate
  • Ultramax
  • Ultramax II / II  

Since the TOTO S550e only comes in elongated size, it is NOT compatible with the following one-piece, round TOTO toilets:

  • Supreme
  • Ultimate
  • UltraMax

In terms of two-piece, elongated toilets, the TOTO S550e is compatible with:

  • Aquia I / II
  • Aquia IV
  • Clayton
  • Connelly
  • Dartmouth
  • Drake
  • Drake II / II 1G
  • Maris
  • Nexus
  • Promenade
  • Promenade II / II 1G
  • Rowan
  • Vespin II / II 1G
  • Whitney

The TOTO S550e is NOT compatible with these two-piece, round toilets (again, because the TOTO S550e only comes in elongated size):

  • Drake
  • Drake II
  • Promenade
  • Rowan

Finally, if you have a wall-hung, elongated bowl, the TOTO S550e is compatible with the Toto Aquia and Maris models.

If you don’t have a TOTO toilet, it is important to do a thorough job measuring your bowl before you order the TOTO S550e. Keep in mind, even if the measurements work based on requirements below, some models of toilets will still not allow the TOTO S550e to fit properly due to certain contours where the tank meets the bowl.

These measurements are general guidelines for TOTO S550e compatibility with toilet bowls. In general, the TOTO S550e is best for an elongated bowl that has 18.5 inches from the mounting holes to the front of the bowl. You also need a minimum of 1.75 inches, from the front face of the water tank to the center of the mounting holes. Also, the TOTO S550e is designed to fit the standard seat mounting hole spacing of 5.5 inches, center to center. If you have different spacing between mounting holes, it likely will not fit.

As products are often revised or updated, when you order your TOTO S550e, it would be wise to contact us and verify that your model toilet bowl is indeed compatible with the TOTO S550e. If not, you may want to upgrade your toilet because you don’t want to miss out on this luxury, high-end bidet toilet seat.

 

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