The one other assembly required for that Flowtron was inserting the octanol cartridge, which slides effortlessly to the cartridge holder on The underside of your device. The cartridge lasts about thirty times and charges about $15 for any alternative 3-pack. In the course of my testing, I looked at https://ricardoisxcl.blogstival.com/51167904/the-smart-trick-of-flowtron-bk-40d-electronic-insect-killer-that-nobody-is-discussing