Concealed cistern, 4.5litres single flush with pneumatic operation and a conventional side supply fill valve Product Details Company Name Ideal Standard International NV Brand Name Conceala Model Number S364067 Maximum Flow Rate 4.5 l/min Maximum Volume 4.5 litres Category Cisterns Available In United Kingdom Efficiency Rating Chart Company name:Ideal Standard International NV Model:S364067 4.5 l/min