17.5 oz (1 lb 1.5 oz) 496 g Kills on contact! No lingering chemical odor. For household use only. Raid Ant &Roach Killer 17 kills roaches in two ways – 1) It kills bugs fast – on contact and 2) It keeps on killing with residual action even after you spray, for up to 4 weeks. Contains no CFCs or other ozone depleting substances. Federal regulations prohibit CFC propellant in aerosols.