Viper Insecticide Concentrate offers residual control of roaches, ants, silverfish, spiders and many other insects. Contains Cypermethrin 25.4%. Available in 1 ounce, 4 ounce, and 1 pint. Use Sites: Indoors, Outdoors, Lawns, Ornamentals, Lumber, Logs Effective Against: Cockroaches, Spiders, Fleas, Ticks, Ants, Mosquitoes, Scorpions, Silverfish, Wood Infesting Beetles Active Ingredients: 25.4% Cypermethrin Product Specifi