Comfort height 6/3L dual flush, close-coupled WC suite with soft-close seat and WRAS approved fittings. Product Details Company Name AKW Brand Name Stilo Model Number 23551 Maximum Flow Rate 3.75 l/min Maximum Volume 6/3 litres Category WC Suites Available In Ireland United Kingdom Efficiency Rating Chart Company name:AKW Model:23551 3.75 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.