Bathroom sets 43 In-Tank Meridian Unique Toilet A new era in the bathroom world has just begun! roCA is launching its new revolutionary product, meridian In-Tank flush toilet that can do without an external tank. An elegant and particularly simple solution for every toilet. Both versions – floor-standing and wall-hung toilet – provide sufficient water reserve inside the ceramics. And quite naturally, in line with the philosophy of the bathroom market leader, flushing is very hygienic, economical and environmentally-friendly. you can select not only 4.5 or 3 litres of water, but also 2 litres in the exceptionally economical and silent night mode. Soft Air© technology. Integrated air pump. roca has created the new In-Tank system, which integrates the cistern into the WC. Its Soft Air technology ensures an optimal, ® silent flush: it consists of an air pump that 4.5/3 litre pushes the water from the tank to provide Dual Flush the dual 4.5/3 litre flush. Tank integrated into the WC How the In-Tank system operates: 1. Choose the desired flush and press the button. 2. The air pump, with its Soft Air© technology, is activated and emits a flow of compressed air, pushing the water from the internal tank. 3. The water rises up to provide a flush, expelling the selected volume of water from the internal tank. 4. The internal tank refills until reaching its optimum water level. During a power outage, the functionality of the toilet is secured with battery backup.