Ortho Home Defense Insect Killer for Indoor & Perimeter – Refill & Wand Options

Keep Bugs Out — For Up to 12 Months

Ortho Home Defense Insect Killer for Indoor & Perimeter creates a powerful bug barrier that kills and prevents ants, cockroaches, spiders, fleas, ticks, scorpions, earwigs, and 130+ other insects. Whether you're treating a kitchen, bathroom, garage, or the full perimeter of your home, this formula delivers long-lasting protection you can count on.

Why Homeowners Trust Ortho Home Defense

• Up to 12-Month Protection – One application on non-porous indoor surfaces keeps ants, roaches, and spiders away all year long
• Kills 130+ Insects – Ants, beetles, centipedes, cockroaches, crickets, fleas, mosquitoes, spiders, stink bugs, ticks, termites, and more
• Invisi-Shield Technology – No fumes, dries clear, dries fast — safe for use around your family once dry
• Indoor & Outdoor Use – Apply in kitchens, bathrooms, around doors and windows, patios, decks, garages, and foundation perimeters
• Refill-Ready Design – The 1.33 gal. refill is compatible with your existing Ortho Comfort Wand, reducing waste and saving money

How to Use

Hold sprayer 12 inches from the surface. Apply a 4-inch band indoors or a 12-inch band outdoors along the perimeter. Spray until slightly wet — do not soak. People and pets may re-enter once the treated area has dried. Use as a preventative treatment or at first sign of insect activity.

Available in multiple configurations: Large Refill, Small Refill, Large Comfort Wand, Spray Foam, Trigger Sprayer 2-Pack, and Wand + Refill Bundle.