Repel-X Insecticide & Repellent was the first fly spray on the market in 1957 and continues to remain a customer favorite. The ready-to-use, water-based formula kills and repels stable, horse, face, deer, house and horn flies, ticks, gnats, mosquitoes, fleas, chiggers, and lice. Use it as a spray or wipe it on. For use on horses, dogs, and their premises. Contains Pyrethrins, Piperonyl Butoxide, Technical and Permethrin.  Available in a 32oz/1 quart spray or a 16oz concentrate. One quart of concentrate makes 8 quarts of ready-to-use fly spray.