CleanTek Window Cleaner is a high quality sprayonwipeoff, hard surface cleaner, designed specifically for cleaning windows, mirrors and other smooth surfaces such as tiles. Nonsmear and fast drying. Supplied in a 5 litre bottle. Directions For Use: Use undiluted as a sprayonwipeoff cleaner for cleaning glass and smooth surfaces. Dilute 20ml per litre of water (1:50) when using professional squeegee equipment. Use with the CleanTek Window Cleaner Sprayer (500ml).