The convenient, versatile Window Vac: the WV 2 makes cleaning of all waterproof smooth surfaces, such as glass, windows, mirrors, shower, etc., more convenient than ever. The nozzle change system makes cleaning both small and large windows easier. The dirty water tank can be emptied quickly and easily when required. Comes with 500ml of window cleaning concentrate (add 1 cap/20ml of concentrate to the spray bottle and top up with 230ml of water), improving rainwater run-off and keeps surfaces clean longer.