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TOTO Neorest Installation Requirements

12" Rough-In

One important thing to note about TOTO Neorest Integrated Bidet Toilets is that they REQUIRE a 12" rough-in.

There is no adapter option as with other bidet toilet combos like the TOTO Aquia IV Washlet+ S7A Two-Piece, which can be used with a 10" rough-in adapter or 14" rough-in adapter

10" rough-in adapter

When talking about toilets, the "rough-in" is the distance between the wall behind the toilet and center of the toilet's drain pipe. There needs to be a specific amount of space between these two points.


measuring a toilet's rough-in diagram


Most bathrooms have the standard 12" rough- in, but if you live in an older house or building, you may have a 10" or 14" rough-in. 

Make sure you or a plumber look at the Neorest product specification sheet and measure your rough-in and other dimensions to make sure a TOTO Neorest will fit in your bathroom first before ordering. 

Neorest Installation Manuals and Guides

Check the installation guides here first before ordering. Make sure the Neorest you're interested in purchasing can be installed in your current bathroom set up!

Here are some Neorest Installation guides for various models:

TOTO Neorest LS

 TOTO Neorest RS

TOTO Neorest AS 

TOTO Neorest NX1