DetailsBring the big guns, with an effective roach killer that provides quick knockdown of unappealing roaches. Formula keeps killing roaches for up to seven weeks. Insecticide also effective against scorpions and other insects. Special valve is designed to spray even when can is upside down. Physical Form: Aerosol; Application: Indoor; Outdoor; Pest Type: Cockroaches; Capacity (Volume): 16 oz.