Slim, contemporary design, horizontal outlet, open rim, pre-assembled cistern fittings, bottom connections (B110) Product Details Company Name Shires Brand Name Napoli Model Number NL30100WH (Pan) NL40397WH (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:NL30100WH (Pan) NL40397WH (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.