PRO Glass Cleaner effectively cleans glass and mirrors with no streaks or smudges. Professional-grade, powerful concentrate removes fingerprints, pollution, smears, dirt and grime. Versatile cleaner also works on fiberglass, plastic, porcelain and other reflective surfaces, including plain and factory-tinted automotive glass. It does not contain harmful ammonia or bleach. Concentrated cleaner is a cost-effective choice. One bottle makes up to 31 gallons of glass cleaner.