TOTO WH131MNF Concealed Cistern Without Frame Dual Flush

The TOTO WH131MNF is a professional-grade concealed cistern designed for frameless in-wall installation. Engineered for clean, minimalist bathroom designs where no hardware is visible, it stores the full flushing mechanism behind the finished wall — leaving only the flush button plate exposed to the bathroom interior.

Efficient 6L/3L Dual Flush Performance

The WH131MNF operates a dual-flush system with selectable 6L or 3L flush volumes, giving users the appropriate flushing power for every situation without unnecessary water consumption. Compatible with TOTO's range of wall-hung toilet bowls, the cistern delivers a consistent, reliable flush cycle every time.

Frameless Design for Maximum Flexibility

The frameless format keeps the installation footprint to its minimum, making the WH131MNF compatible with a wider range of wall thicknesses and bathroom layouts. The push-button actuator plate is purchased separately, allowing the owner to select the most appropriate finish for the space. TOTO's five-year manufacturer's guarantee covers the WH131MNF for lasting, worry-free performance.