Concealed Cistern Dual Flush Toilet Valve with Push Button. Brand new, premium quality replacement concealed cistern dual flush toilet valve with push button. Specification: Top or Side Mounted, 1.5"" to 2"" Gasket (Fits 1.5"" and 2"" Outlets), Concealed Cistern, Dual Flush (Water Saving), Push Button, 300mm Cable, Adjustable Overflow Pipe (200mm to 280mm). Flush Flow Rate: 2.2L/S. WRAS (Water Regulations Advisory Scheme) Approved. Partial Flush Float (Move up to decrease water volume - see images). Full Flush Sheet (Move up to decrease water volume - see images). Material: UPVC. Includes Instructions.