Revenge House Guard Foaming Insect Killer Aerosol is a ready-to-use aerosol that expands and spreads into deep and hard to reach places. This foam disappears into an invisible barrier against insects.  Kills and control invading pests for up to 18 months both inside and outside the home. Kills cockroaches, ants, spiders, centipedes, ground beetles, crickets, flying insects, bed bugs, lice and many more listed insects.  The long lasting, waterbased formula is odorless and non-staining.