The KWC DVS Version 2 Flush Valve WC01-022 is a brand new product. Product details: Suitable for installation with DVS sensors or tactile buttons, the water-efficient DVS WC flush valve provides automatic or wave operation flushing for improved hygiene and less water waste in high traffic toilets. Offering easy retrofit with no need for plumbing changes, this valve is suitable for use with most WC cisterns. When setting up the DVS flush valve a single 4L flush is recommended, however automatic and wave operation does provide a dual flush facility. Product features: 1 1/2" base 4L single flush 30% savings on water costs Fits new and existing cisterns WRAS approved Technical specifications: Brand - DVS For Use - With WC Cisterns Depth- (mm) 105 mm Supplier Product Code - WC01-022 Type - Flush Valve Height - 178.2 mm Width - 75 mm If you have any questions, please feel free to contact me.