PetArmor Flea and Tick Treatment for Medium Dogs (23-44 Pounds)PetArmor Flea and Tick Treatment for Dogs provides the same #1 veterinarian recommended active ingredient, fipronil, in the same concentration as FRONTLINE top Spot. You get the same flea and tick protection at a significant savings. Pet armor for dogs acts fast. It is an effective, long lasting, waterproof, and easy to use application for killing fleas, ticks, and chewing lice on dogs and puppies eight weeks and older. Each box conatins three (3)