Developed for leading German car makers, Kristal Klara Windshield Washer Fluid Concentrate is 200 times more concentrated than the typical pre-mixed washer fluid. Each full reservoir dose, when mixed with regular tap water, makes approximately 2 gallons of highly effective washer fluid that easily removes road grime, bugs and dirt without causing smearing or glare that can impair driving. Reduces wiper blade wear and tear and eliminates skipping and shuddering. Does not leave white residue on paintwork. Softeners prevent mineral build-up in washer system for optimum operation. And unlike washer fluid tablets, Kristal Klara will dissolve completely, contains lubricants and won't clog your windshield washer fluid system. Biodegradable and phosphate-free. Ammonia-free so it won't harm chrome, paintwork, rubber or plastic. The only car windshield washer fluid that doesn't contain toxic methanol which is typically found in leading brands. Has a fresh citrus scent. Each bottle makes over 12 gallons. Not rated for freezing. For winter and year-round protection, try our winter formula Anti-Frost Concentrate.