The Claytan Invisi MKII Cistern with a dual flush option of 4.5/3 liters is an advanced and water-efficient solution for your bathroom. Crafted with high-quality materials, this in-wall cistern is designed for concealed installation, providing a clean and modern look to your bathroom space. The dual flush feature allows users to choose between a 4.5-liter flush for solid waste and a 3-liter flush for liquid waste, promoting water conservation. Easy to install and with a focus on space optimization, the Claytan Invisi MKII Cistern is a practical and environmentally conscious choice for those seeking both efficiency and a sleek aesthetic in their bathroom fixtures.