12 month control. Kills fleas, brown dog ticks, flea eggs, flea larvae, and flea pupae. Clean fresh scent. Deodorizes and 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. Questions? Comments? 1-888-908-Tick (8425). Or write to: Sergeant's Pet Care Products, Inc. PO Box 540399, Omaha, NE 68154-0399.