Ortho's Home Defense Insect Killer for Indoor & Perimeter2 doesn't just kill bugs, it creates a bug barrier. Whether you have ants, spiders, roaches, or other home-invading insects, you can count on Ortho to keep them out. Simply spray Ortho Home Defense around the perimeter of your home foundation to protect your home for up to 12 months. | Ortho Home Defense Insect Killer for Indoor & Perimeter2 with Comfort Wand | Size 1.1 gal