Close coupled suite – p trap WC & cistern Product Details Company Name Serel Seramik A S Brand Name Lila Model Number 94A6 WC & 9448 cistern Maximum Flow Rate 2.88 l/min Maximum Volume 4/2.5 litres Category WC Suites Available In United Kingdom Efficiency Rating Chart Company name:Serel Seramik A S Model:94A6 WC & 9448 cistern 2.88 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.