Penrite Clear Screen Cleaner 20 LitrePenrite Clear Screen Cleaner 20 Litre Clear Screen concentrate is a highly concentrated cleaning additive for the windscreen washer unit. It removes dirt and smearing films from the windscreen. APPLICATION Clear Screen concentrate rapidly removes dirt, mineral dust, exhaust gas residues and rainwater deposits from windscreens. Oil soot, insects, silicone, grime and traffic film are removed in seconds and wiper blade action is smoothed. Tolerant to