Harris Home Pest Control Roach Killer Spray contains cypermethrin as active ingredient. We recommend using this highly-effective killer spray with Harris roach tablets to effectively control cockroach infestations and prevent roaches from returning. Apply as spot and crack & crevice treatment to areas where roaches crawl and hide, especially in hidden areas around sinks and storage areas, behind baseboards, around windows and doors, and behind and under refrigerators, cabinets and sinks. Kills Roaches When Spray Dries - Highly effective spray will kill once completely dried and continues to kill roaches weeks after application Great Value - 1 gal. allows for repeated applications on an on-going basis to effectively eliminate roaches Odorless Formula - Odorless and non-staining pest control killer spray will not cause damage to fabrics when used according to label directions EPA Registered - Approved for use in homes with people and pets by the Environmental Protection Agency (No. 3-11) Extended Trigger Sprayer - Use the included trigger sprayer to effectively treat areas where roaches are hiding