Installation Guide
32
ROUGH-IN DIMENSIONS / DIMENSIONES PRELIMINARES /
DIMENSIONS BRUTES
* Recommended Dimensions
* Dimensiones Recomendadas
* Dimensions Recommandées
Model
Modelo
Model
A B C
CST405F 26 ¼” 16-1/8” 31-11/16”
CST405MF 26 ¼” 16-1/8” 31-11/16”
CST406F 28 ¼” 16-1/8” 31-11/16”
CST406MF 28 ¼” 16-1/8” 31-11/16”
REPLACEMENT PARTS / REFACCIONES /
PIÈCES DE RECHANGE
Model
Modelo
Model
Fill Valve
Válvula de
Llenado
Robinet de
Remplissage
Flush Valve Assembly 
with Flapper
Válvula de Descarga
Asamblea con Trampa
Soupape de Chasse
Assemblée Tambour
Trip Lever/ Push Button
Palanca de Descarga/
Botón pulsador
Levier de Déclenchement/ 
Bouton-poussoir
ST406 TSU30A THU364 THU068#XX
ST405M TSU09A.7 THU362 THU363#CP
SPECIFICATIONS
•  Water Use    1.6 GPF (6.0 LPF)
•  Flush System  Gravity
•  Min. Water Pressure  8 psi (fl  owing)
•  Water Surface  5-1/2" x 7-1/4"
•  Trap Diameter  1-7/8"
•  Rough-in  12"
•  Trap Seal  2"
•  Warranty  One Year Limited Warranty
•  Material  Vitreous china
•  Shipping Weight    C406F - 53lbs 
ST406 - 35lbs
•  Shipping Dimensions    C406F - 28" x 16" x 17"
    ST406 -  20-1/2" x 9" x 17-1/2"
CST406F
Rowan
™
 Close Coupled Toilet, 1.6GPF
Double Sanitary Tee / Sanitary CrossDouble Combination Wye / 1/8 Bend
ONSEY
# SS-00548 V.01
Printed in U.S.A. | © TOTO USA 05/11t | Printed on recycled paper  
Ph: (888) 295-8134 | Fax: (800) 699-4889 | www.totousa.com 
INSTALLATION NOTES
Back-to-Back Toilet Installations:
 TOTO recommends the use of a nationally listed, 
double sanitary tee-wye only, in vertical waste stacks, 
in accordance with the stipulations noted in the 
majority of nationally recognized plumbing codes.
These dimensions and specifi  cations are subject to change without notice
B
12" (305mm)
 A
14-1/8"
(359m
m
5-1/2"
(140mm)
28-1/4" (717mm)
7" (177mm)
3/4"
(20mm)
5-11/16"
(145mm)
11-
3/8
" 
(
2
89
mm
)
6-11/16"
(171mm)
WATER LEVEL
*8" (203mm)
*5-7/8"
(149mm)
9-1/16" (230mm)
C
18-1/2" (470mm)
29-1/2"
(750mm)
SUPPLY
AS REQ'D
* SUGGESTED DIMENSION
14-9/16"
(370mm)










