12 month control. Kills: fleas; brown dog ticks; flea eggs; flea larvae; flea pupae. Deodorizes & freshens carpets. This container is sold by weight, not by volume. You can be assured of proper weight even though some settling of contents normally occurs during transportation and handling. If you have questions or comments about this product, please write: Sergeant's Consumer Response, P.O. Box 540399, Omaha, NE 68154-0399. In case of emergency, call: 1-800-781-4738. Non-emergency, call 1-800-224-Pets (7387).