Amdro Ant Block Ready to Use Home Perimeter Ant Spray, 1-Gallon by Amdro. $22.22. Ant block ready to use home perimeter ant spray. It keeps killing for up to 3 months. Measures 5-inch length 9-inch width 12-inch height. This convenient, ready to use liquid spray kills termites and carpenter ants. Includes patented &quot;comfort grip&quot; battery operated sprayer system. This ant block ready to use home perimeter ant spray kills termites and carpenter ants. This ready to use...