Don't just kill bugs; create a bug barrier with Ortho Home Defense Insect Killer for Indoor & Perimeter Refill2. Whether you have ants, spiders, or cockroaches, you can count on this Ortho spray to kill and keep bugs out. Other common household insects controlled include fleas, ticks, scorpions, beetles, earwigs, centipedes, silverfish, and periodical cicadas (see product label for complete list). Use indoors in kitchens, bathrooms, and basements, as well as outdoors for decks and around perimeters. It's formulated to leave no residue and dries in minute for quick re-entry of treated areas. Ortho Home Defense Insect Killer for Indoor & Perimeter2 is long-lasting, delivering up to 12 months of protection for ants, roaches, and spiders on non-porous surfaces. Apply Ortho Home Defense Insect Killer for Indoor & Perimeter2 anytime as a preventative treatment, or whenever you see bugs and evidence of insect activity. Use this 1-gal. refill by attaching the Comfort Wand from your original container of Home Defense Insect Killer for Indoor & Perimeter2.