Abacus Cisterns

The Abacus Flush Cisterns range are designed for use with back-to-wall toilets, providing a reliable concealed flushing solution for modern bathrooms, en-suites and cloakrooms. Unlike toilet fixing frames, these concealed cisterns are intended for floor-standing back-to-wall WCs and are installed inside furniture, boxing or stud walls, rather than supporting a wall hung toilet.

Manufactured to the high standards you'd expect from Abacus, these concealed cisterns offer dependable performance, water-saving dual-flush technology and easy access for maintenance through the flush plate opening. They are the ideal choice for creating a clean, minimalist bathroom with all pipework and the cistern hidden from view.

Every Abacus Flush Cistern is compatible with the stylish range of Abacus WC Flush Press Panels, available in six modern collections including Trend², ISO², Edge, Zone, Mode and Glint. With finishes such as Chrome, Brushed Brass and Matt Black, you can coordinate your flush plate with the rest of your Abacus brassware for a seamless, designer look.

If you're installing a wall hung toilet, you'll need one of our Abacus Toilet Fixing Frames instead, as these include the support frame required to carry the weight of the WC. For more concealed installation options from leading manufacturers, you can also browse our full range of Concealed Flush Cisterns.

Whether you're replacing an existing concealed cistern or completing a new bathroom installation, Abacus Flush Cisterns provide a high-quality, dependable solution that's built to deliver years of reliable performance.