The only real other assembly desired for that Flowtron was inserting the octanol cartridge, which slides simply in to the cartridge holder on The underside in the device. The cartridge lasts about 30 days and expenditures about $15 for the replacement 3-pack. Assistance rid your property of frustrating bugs https://flowtron-bug-zapper-bulb74184.blogthisbiz.com/34777802/the-5-second-trick-for-flowtron-bk-40d-electronic-insect-killer