wall hung WC washdownProduct Details Company Name Alfoldi Brand Name CUBUS Model Number 6638C1 Maximum Volume 3.8 litres Category WC Suites Product Descriptionwall hung WC washdownAvailable In Hungary Efficiency Rating ChartCompany name:AlfoldiModel:6638C1 3.8 litres www.uwla.eu The average flushing volume for dual flush WC Suites and Cisterns is calculated as (a + (3 × b)) ÷ 4, where a is the full flush value and b is the low flush value.