WIPER BLADE

The invention relates to a wiper blade having: a wiper strip; a supporting element which distributes a contact pressure onto the windscreen over the length of the wiper blade (1); an adapter (6) for connection to a wiper arm (3); at least one end cap (2) on one or both ends of the wiper blade (1), said end caps covering at least the supporting element; nozzle elements (14) for applying a cleaning fluid to the screen; and fluid lines (5, 10, 13) to the nozzle elements (14), which can be connected to fluid feed lines (4) of the wiper arm (3) via the adapter (6). According to the invention, a fluid feed line (5) leads from the adapter (6) to the at least one end cap (2), and a valve unit (12) is connected to the fluid feed line (5) upstream of or in the end cap (2), and the nozzle elements (14) are connected downstream of the valve unit (12).