Auto-Flush Kit THU857 for Compatible T40 Single-Flush Toilets Rated at 1.28 or 1.6 Gallons per Flush
Auto-Flush Kit THU857 for Compatible T40 Single-Flush Toilets Rated at 1.28 or 1.6 Gallons per Flush
The auto-flush kit adds hands-free flushing to a compatible toilet setup, so there is no need to press a flush button or operate a handle after use. The TOTO THU857 provides this automatic function when paired with the corresponding WASHLET+ toilet and an Auto-Flush compatible S7A WASHLET.
Designed as an upgrade for compatible WASHLET+ T40 toilets, this kit fits single-flush models rated at 1.28 or 1.6 GPF. Compatibility listings include S7A and S7 bidet seats, but exclude round S7A SW4735#01, S550e and S500e seats, and the Supreme II CST634CEFGT40 toilet. Check both the toilet and seat model before selecting the kit.
Features
- Automatic flushing after use when paired with the corresponding toilet and an Auto-Flush compatible S7A seat
- Hands-free operation removes the need to touch flush buttons or handles
- Upgrade for compatible WASHLET+ T40 single-flush toilets
- Supports compatible toilets rated at 1.28 or 1.6 GPF
Specifications
- Product: Auto-flush kit
- Model: THU857
- Brand: TOTO
- Compatible toilet platform: WASHLET+ T40, subject to model exclusions
- Flush configuration: Single flush
- Compatible flush ratings: 1.28 and 1.6 GPF
- Listed seat compatibility: Compatible S7A and S7 bidet seats
- Excluded seats: S550e, S500e and round S7A SW4735#01
- Excluded toilet: Supreme II CST634CEFGT40
Frequently Asked Questions
Which toilets can use the THU857 auto-flush kit?
The THU857 fits compatible single-flush WASHLET+ T40 toilets rated at 1.28 or 1.6 GPF. The Supreme II CST634CEFGT40 is excluded, so check the exact toilet model before purchase.
Can I use the THU857 with an S7A or S7 bidet seat?
The THU857 compatibility list includes S7A and S7 bidet seats, but excludes the round S7A SW4735#01. The toilet must also be a compatible single-flush T40 model.
How does the THU857 provide hands-free flushing?
The THU857 automatically flushes after use when paired with the corresponding WASHLET+ toilet and an Auto-Flush compatible S7A WASHLET. This removes the need to touch a flush button or handle.
Will the THU857 work with an S550e or S500e seat?
No. The THU857 is not compatible with S550e or S500e WASHLET seats.