Rentokil fly killer cassette is a fragranced cassette designed to kill flies moths mosquitoes and other flying insects in the home its an easy to use discreet unit that helps freshen your room and has a handy date indicator to let you know when it needs to be replacedthe cassette is ideal for smaller rooms protecting up to 30 cubic metres of spacewarningfor use only as an insecticide toxic to aquatic organisms may cause long term adverse effects in the aquatic environment keep out o