Kills a broad range of insects. Designed for serious insect problems. Continues exterminating for up to two months. One fogger covers up to 625 square feet. No worries with a non-staining formula that leaves no mess. Penetrates into cracks, crevices and carpet fibers to seek out and kill bugs where they live, breed and hide. Physical Form: Liquid; Application: Carpet;Cracks/Crevices; Pest Type: Ants;Roaches;Silverfish;Spiders;Water Bugs. ~ Includes 12 packs of three foggers each.