Compact styling, efficient washdown operation, top action valve, dual flush push button, open rim, close coupled, horizontal outlet, bottom connections (B110) Product Details Company Name Shires Brand Name Naiad Compact Model Number NA30100WH (Pan) NK40342WH (Cistern) Maximum Flow Rate 4.5 l/min Maximum Volume 6/4 litres Category WC Suites Available In United Kingdom Efficiency Rating Chart Company name:Shires Model:NA30100WH (Pan) NK40342WH (Cistern) 4.5 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.