Wall hung WC with Geberit UP 172 4.5/3 litres dual flush cistern. Product Details Company Name Olympia Ceramica SRL - Unipersonale Brand Name Clear Model Number 15.CL Maximum Flow Rate 3.38 litres Maximum Volume 4.5/3 litres Category WC Suites Available In Italy United Kingdom Efficiency Rating Chart Company name:Olympia Ceramica SRL - Unipersonale Model:15.CL 3.38 litres 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.