REVENGEĀ® Ready to use Gallon Sized Horse & Stable Fly Spray with nozzle protects livestock from flying insects. This water-based formula protects horses, beef & dairy cattle, goats, sheep, swine, poultry, and dogs. It can be sprayed directly on livestock when used as directed. This product is conveniently ready to use when it arrives. The spray nozzle makes this product easy to deploy. Sold in lots of 4, priced individually.