Washlet Fitting Guide

POWER CORD
3.9 FT.
CENTER
OF HOLE
18-1/2”
(470 mm)
LIP OF
BOWL
FRONT
OF TANK
CENTER
OF HOLE
2” Min. (50 mm)
5-1/2”
(140 mm)
8” Min.
(203 mm)
CENTERS OF
SEAT MOUNTING
BOLT HOLES
EDGE OF
FLAT BOWL
SURFACE
CENTER OF
TOILET
POWER CORD
3.9 FT.
CENTER
OF HOLE
18-1/2”
(470 mm)
LIP OF
BOWL
FRONT
OF TANK
CENTER
OF HOLE
2” Min. (50 mm)
5-1/2”
(140 mm)
8” Min.
(203 mm)
CENTERS OF
SEAT MOUNTING
BOLT HOLES
EDGE OF
FLAT BOWL
SURFACE
CENTER OF
TOILET
POWER CORD
3.9 FT.
CENTER
OF HOLE
18-1/2”
(470 mm)
LIP OF
BOWL
FRONT
OF TANK
CENTER
OF HOLE
2” Min. (50 mm)
5-1/2”
(140 mm)
8” Min.
(203 mm)
CENTERS OF
SEAT MOUNTING
BOLT HOLES
EDGE OF
FLAT BOWL
SURFACE
CENTER OF
TOILET
POWER CORD
3.9 FT.
CENTER
OF HOLE
18-1/2”
(470 mm)
LIP OF
BOWL
FRONT
OF TANK
CENTER
OF HOLE
2” Min. (50 mm)
5-1/2”
(140 mm)
8” Min.
(203 mm)
CENTERS OF
SEAT MOUNTING
BOLT HOLES
EDGE OF
FLAT BOWL
SURFACE
CENTER OF
TOILET
WASHLET INSTALLATION REQUIREMENTS
When your existing toilet is in need of an upgrade.
Elongated seats approximately
18-1/2 inches* (470 mm) from
mounting holes to front of bowl.
*Approximately 16-1/2" (420 mm) for round WASHLET seats.
The following four-part diagram details the approximate measurements and requirements for
installing most WASHLET models on existing toilets. Note that some styles of toilets may not
allow WASHLET to fit properly due to certain contours where the tank meets the bowl.
Minimum of 2 inches (50 mm)
from front face of tank to the
center of mounting holes.
Minimum of 8 inches (203 mm)
of open space from center of
toilet to edge of flat bowl surface.
Approximately 5-1/2 inches
(140 mm) from the centers
of the seat mounting holes.
1. 2.
4.3.