WC combination pan, horizontal outlet, washdown flushing, open rimProduct Details Company Name Jika Brand Name Deep by JIKA Model Number H824646 Maximum Volume 3.75 litres Category WC Suites Available In Bulgaria Efficiency Rating ChartCompany name:JikaModel:H824646 3.75 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.