Prozap Insect Guard 80g 4x12 Clip Strip. Easy-to-use pest strip for use in general spaces. 18.6% Vapona for fast and effective control. Kills flies, gnats, mosquitoes, moths, and various listed crawling insects. Continuous insect protection for up to 4 months. One Insect Guard strip treats up to 1200 cubic feet. For use in unoccupied areas in the home, such as garages, attics, crawl spaces, sheds, and basements. For use in barns, stables, tack rooms, kennels, and other farm buildings. Controls pests in raw grain bulk storage and garbage collection areas.