HOUSEHOLD INSECTICIDE MORTIEN Weight: 605G. The MORTEIN FLYING INSECT KILLER 2X FASTER 550ML is the most powerful and efficient insect killer on the market. It is easy to use, with a fast trigger speed, making it perfect for small areas. This flying insect killer also has a larger nozzle area that eliminates more bugs in one go, meaning less downtime. Mortein Flying Insect Killer 2x faster is the most effective way to get rid of pesky flying insects. Our powerful formula will quickly kill any bug, including mosquitoes and gnats. It is a powerful insecticide that kills flying bugs in minutes. Its a fast, efficient way to get rid of those pesky pests.