Close Coupled WC with Geberit Impulse 4.5/3 litres dual flush cistern. Product Details Company Name Olympia Ceramica SRL - Unipersonale Brand Name Tutto Model Number TM.BL Maximum Flow Rate 3.38 l/min Maximum Volume 4.5/3 litres Category WC Suites Available In Italy United Kingdom Efficiency Rating Chart Company name:Olympia Ceramica SRL - Unipersonale Model:TM.BL 3.38 l/min 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.