Thick formula coats bowl above and below the waterline for long-lasting effectiveness. Safe for plumbing and septic systems. Kills 99.9% of viruses and bacteria when used as directed. Angled bottle targets hard to reach areas. Leaves a fresh, clean scent. Application: Toilet & Urinal Cleaner; Applicable Material: Toilets; Urinals; Chemical Compound: Alkyl C14 50%, C12 40%, C16 10% Dimethyl Benzyl Ammonium Chloride; Dirt Types: Grime; Mildew; Mineral Scale; Mold; Organic Matter; Soil; Stains.