Black Flag Ant & Roach Killer Spray, 17.5 oz. effectively eliminates roaches, ants, carpenter ants, crickets, spiders—including black widow spiders—silverfish, fleas, and other listed pests. Its powerful active ingredient, Imiprothrin, provides long-lasting protection by killing German cockroaches and crickets for up to three months. This water-based formula is designed to leave no oily residue and is non-staining, making it safe and convenient for use around your home. The product comes ready to use in a 17.5 oz. aerosol spray can, ensuring easy application for fast and effective pest control.