Mw2 Extendable + Za Bibo Adaptor 2 Inch Retrofit Mw2 Dual Flush Mechanism. * Height Of Cisterns (Mm): 300 To 420. * Diameter Of Cover Hole (Mm): 14 To 46. * Mechanism Base (Inches): 2 * Water Saving: Dual Flush. * Control System: Cable Control. * Top Or Front Mechanism: Top Or Front. ** Main Characteristics: * Adjustable Overflow (240 To 270mm). * Retro Fit. * All Wirquin Mechanisms Come With A 10 Year Guarantee. * Conform And Or Comply To Sabs; Nf (French Standard); Wras (Uk Standards); Din (German Standards) And En (European Standards). * Flush Valve Tested To 250 000 Cycles. * Packaging Box