
CST424SF
Promenade 1.6 GPF Toilet, Elongated
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■ Traditional design with
stately lines
■ Powerful and quiet flush
■ Promenade design suite:
Matching pedestal and 
self-rimming lavatories
■ Large water surface
■ Universal Height
High profile, elongated, close 
coupled toilet. Low consumption 
(1.6 Gpf/6.0 Lpf) gravity flushing 
action.
Tank cover, fittings, chrome plated 
trip lever less seat.
■ CST424SF
Elongated, 12" rough-in, 
less seat.
■■
C424EF
■■
Elongated front bowl only, 
12" rough-in. 
■■
ST423S
■■
Promenade tank and cover only. 
Complete with tank trim and 
coupling components.
CST424SF - Promenade Toilet 
SS114 - SoftClose Seat
G-Max™ 
Technology: Quiet, 
powerful, 
commercial grade 
flushing 
performance.
Choose a SoftClose 
toilet seat, or 
upgrade to a 
Washlet™.
®
Fast Flush: New, wide 3” flush valve is 125% 
larger than conventional 2” flush valves.
■■
SS114
■■
SoftClose: Seat and lid gently close 
with a touch of a hand. 
Elongated,
closed front seat with lid.
ADA Compliant
Colors:
Standard #01 Cotton, #11 Colonial White, 
# #12 Sedona Beige, #03 Bone, 
# #04 Gray, & #51 Ebony
Optional See price book for 
Trip Lever:
Standard #CP Chrome Plated
Optional See price book for 
additional colors
additional finishes
Augusta Decorative Collection

28-1/4”
(714mm)
5-1/2”
(140mm)
3/4”(20mm)
18-3/4”
(478mm)
16-1/4”
(410mm)
12”
(305mm)
18-1/2”
(468mm)
33”
(840mm)
10-1/4”
(257mm)
*Suggested
Dimension
*6”
(152mm)
*8”
(203mm)
14”
(353mm)
CST424SF 
Promenade 1.6 GPF Toilet, Elongated
■ PERFORMANCE
The TOTO 1.6 GPF toilet scored the highest 
possible rating in independent laboratory 
performance tests. With a powerful and quiet 
flush design, the toilet also offers a large 
water surface.Promenade toilets are designed to 
match the Promenade Lavatory Suite.
■ SPECIFICATIONS
Water Use: 1.6 Gpf / 6.0 Lpf 
Flush System: Gravity Feed 
Min. Water Pressure: 8 psi 
Water Surface: 8-7/8" x 6-3/8" 
Trap Diameter: 2-1/8" 
Rough-in: 12" rough in 
Trap Seal: 2-1/4" 
Material: Vitreous china 
Warranty: Five Year Limited Warranty
Shipping Weight: C424EF - Bowl 59 lbs.
ST423S - Tank 41.5 lbs.
Shipping Dimensions:
C424EF - Bowl
28"L x 10"W1x 16-1/4"W2x 17-1/4"H
ST423S - Tank
18-7/8"L x 8-5/8"W x 18-1/8"H
Fixture dimensions and hydraulic performance 
meet or exceed ANSI/ASME standard A112.19.2 and 
CAN/CSA B 45 requirements.
Listing and approval: IAPMO/UPC, CSA, City of Los 
Angeles, State of MA, and others
Meets the American Disabilities Act Guidelines and 
ANSI A117.1
These dimensions and specifications are subject to 
change without notice.
TOTO U.S.A., INC. • 1155 Southern Road, Morrow, GA 30260 
Tel. (770) 282-8686 • Fax. (770) 282-8701 • www.totousa.com
Printed in U.S.A. © TOTO LTD. 01/08
CST424SF - Promenade Toilet
Printed on recycled paper
REV 01/08