Drench guns from Ardes are an economical way to drench livestock. Lightweight, easy-to-use drencher available in two sizes. . The pistol grip 150 cc drench gun provides an economical way to drench cattle, sheep, and hogs with fluids, medication, or wormer. Made with a durable plastic frame and strong stainless steel probe for longevity and sterilization. To fill the drenching gun: insert probe into liquid and release handle.