TOTO Neorest AH Smart Toilet | Superseded by Neorest AS

Important Product Update: The Neorest AH has Evolved

The TOTO Neorest AH was the pioneer of the “Full Linear” architectural smart toilet. As of 2026, this legendary model has been officially superseded by the TOTO Neorest AS Smart Toilet (CS921VC/TCF85510GAU).

Why the change? The new AS Model maintains the sharp, clean lines that architects love but adds the industry-leading Underseat EWATER+ feature. This ensures that the rim and underside of the seat—areas often neglected—are automatically sanitized after every use.

If you were originally specifying the AH for its modern, angular look, the AS is the natural successor with several critical improvements:

• Underseat EWATER+: Unlike the legacy AH, the AS mists the underside of the seat with electrolyzed water, preventing bacterial buildup in the hardest-to-reach places.

• Refined Linear Aesthetic: The AS features a more seamless, integrated lid design that offers a sleeker profile when closed.

• Flagship Performance: The AS remains TOTO’s top-tier “Full Feature” model, including Auto-Flush, Auto Open/Close, and the enhanced Tornado Flush system.

We have supported the TOTO brand in Sydney for over a decade. If you own an original AH and need assistance:

• Genuine Spare Parts: We stock the specific TCF series seats and internal valves for legacy AH models to keep your investment running perfectly.

• Expert Troubleshooting: Our Mascot team are factory-trained to diagnose issues with older Neorest generations. | Ready for the Flagship? Visit our Mascot showroom to see the Neorest AS in action and compare the new Underseat EWATER+ feature in person.