Concealed Cistern D/F Lever SSIO 6/4L Product Details Company Name Twyford Bathrooms Brand Name Cistern Model Number CX9564XX Maximum Flow Rate 4.5 l/min Maximum Volume 6/4 litres Category Cisterns Available In United Kingdom Efficiency Rating Chart Company name:Twyford Bathrooms Model:CX9564XX 4.5 l/min