Toto ST403U01 Promenade II 18 inch 1G 1.0 GPF Toilet Tank in, Cotton White (Toilet Not Included)

Got Questions? Ask About This Product
Toto ST403U01 Features
The TOTO Promenade II 1G 1.0 GPF Toilet Tank is designed for use with the Promenade II bowl. The Promenade II tank includes a tank to bowl gasket, tank to bowl hardware, and toilet bolt caps. The tank features TOTO's industry leading 1G technology, offering a powerful flush that flushes completely and fully with only one gallon of water. This version of the tank comes equipped with a decorative left-hand chrome trip lever. The Promenade II meets the standards for EPA WaterSense, and California’s CEC and CALGreen requirements. Additional items needed for installation and use must be purchased separately: toilet bowl, wax ring, toilet mounting bolts, water supply lines, and toilet seat. The Promenade II ST403U tank can be used on the following bowls: C404CUFG and C404CUF.
Features
- Promenade II toilet tank for use with Promenade II toilet bowl
- 1G flushing system, creates a powerful flush with only 1.0 GPF
- Decorative left-hand chrome trip lever
- WaterSense, CALGreen, and CEC compliant
- Included parts: tank to bowl gasket, tank to bowl hardware, and toilet bolt caps
- Purchased separately: Promenade II bowl, wax ring, toilet mounting bolts, water supply lines, and toilet seat
- Compatible with the following bowls: C404CUFG and C404CUF
Toto ST403U01 Specifications
| Width | |
| Exterior Width | 18" |
| Width | 17 3/4" |
| Depth | |
| Depth | 7 7/8" |
| Height | |
| Height | 14 5/8" |
Toto ST403U01 Overview
The TOTO Promenade II 1G 1.0 GPF Toilet Tank is designed for use with the Promenade II bowl. The Promenade II tank includes a tank to bowl gasket, tank to bowl hardware, and toilet bolt caps. The tank features TOTO's industry leading 1G technology, offering a powerful flush that flushes completely and fully with only one gallon of water. This version of the tank comes equipped with a decorative left-hand chrome trip lever. The Promenade II meets the standards for EPA WaterSense, and California’s CEC and CALGreen requirements. Additional items needed for installation and use must be purchased separately: toilet bowl, wax ring, toilet mounting bolts, water supply lines, and toilet seat. The Promenade II ST403U tank can be used on the following bowls: C404CUFG and C404CUF.
Features
- Promenade II toilet tank for use with Promenade II toilet bowl
- 1G flushing system, creates a powerful flush with only 1.0 GPF
- Decorative left-hand chrome trip lever
- WaterSense, CALGreen, and CEC compliant
- Included parts: tank to bowl gasket, tank to bowl hardware, and toilet bolt caps
- Purchased separately: Promenade II bowl, wax ring, toilet mounting bolts, water supply lines, and toilet seat
- Compatible with the following bowls: C404CUFG and C404CUF
Toto ST403U01 Specifications
| Width | |
| Exterior Width | 18" |
| Width | 17 3/4" |
| Depth | |
| Depth | 7 7/8" |
| Height | |
| Height | 14 5/8" |
Toto ST403U01 Warranty & Returns
Warranty Information
1 Year Limited
Return Policy
Returns accepted within 30 days of delivery. Item must be in original packaging and unused condition.
Toto ST403U01 Why Us
Flexible Monthly Financing with Affirm
Split your purchase into easy payments over time—interest-free or with simple interest depending on your plan and eligibility.
Get Free In-Home Delivery on Orders $799+
We offer free in-home delivery to most serviceable zip codes for orders over $799.
Membership Club
Free Standard Installation
Free 1 Year Extended Warranty
Bonus Rewards
3 Level Rebate
Manufacturer rebates, instant savings, and product discounts — all in one place.
Customize your Coverage
Choose a 3- or 5-year protection plan—get 50% back if you don't use it.
Price Match Guarantee
If you find a lower price on an identical item from a local competitor or select online retailers, we will match it.