Abstract: A wiper assembly for cleaning a windshield while supplying cleaning fluid thereto, comprising the usual motor-driven reciprocating arm, and a wiper member in the form of an elongated hollow body having fluid passages therein extending from a inlet to an outlet. The hollow body has an inner side for contacting a windshield and which is open so that fluid within the passages can contact the windshield, while peripheral wiper blades restrict flow of fluid along the windshield and out of the body, beyond the blades. A supply conduit leads from a pumped supply of cleaning fluid to the hollow body inlet, and an outlet conduit leads from the outlet to a reservoir, so that fluid which has entered the hollow body through the inlet and has served to clean the windshield can pass through the outlet conduit back to the reservoir, without passing into the environment.