Prua back to wall concerned with Oli74 Product Details Company Name Azzurra Sanitari in Ceramica S.P.A Brand Name AZZURRA Model Number pru 100 Maximum Volume 3 litres Category WC Suites Available In Italy Efficiency Rating Chart Company name:Azzurra Sanitari in Ceramica S.P.A Model:pru 100 3 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.