Ortho® Home Defense Max Insect Killer 400 g (Aerosol) delivers fast, powerful knockdown and residual protection against ants, roaches, spiders, fleas, ticks, and other household pests. It sprays easily in any direction—even upside-down—for targeted crack-and-crevice or perimeter application. Ideal for indoor spot treatments, it’s formulated to dry fast, leave no stain, and become safe for people and pets once dry.