Don t just kill bugs create a bug barrier with Ortho Home Defense Insect Killer for Indoor Perimeter2. Whether you have ants spiders roaches or any other common insect you can count on this Ortho ready-to-use spray to kill and keep bugs out. Good to use indoors in kitchens bathrooms and basements as well as outdoors on decks around perimeters and on backyard patios. Long-lasting Ortho Home Defense Insect Killer delivers up to 12 months of protection after use. Simply refill and reuse your previous bottle of Ortho Home Defense Insect Killer for Indoor Perimeter2 or plug in the Ortho Comfort Wand to the 1.33-gal. refill bottle and spray. Use Ortho Home Defense Insect Killer for Indoor Perimeter Refill2 as a preventative treatment or whenever you see bugs and evidence of insect activity. This formula leaves no residue or lingering odor. People and pets may re-enter once the treated area has dried.