We had a tremendous problem with what I was told was drain flies. Over the course of a month or month and a half, I used this product numerous times. (I also had been putting out a small dish with half and half brown sugar and vinegar to attrack them, bug guy said to continue doing this with this treatment.) Finally, about a week ago, after a treatment down both my kitchen sinks and replacing the brown sugar and vinegar mixture, it appears most of them have disappeared. It was not as quick as one person's review of two treatments in three days but I will continue to have this on hand as it appears to be doing something to get rid of them or stop them from reproducing. Just wish they came with the little nozzle attachment so I could get further down my drain. I do recommend this product, just wish it had work faster than two months.
I have used this product in the past and it works well. Only includes straw and no tubing cap like the picture. Tubing cap accessory sold separately. Tubing should be included because the straw is ineffective and semi-useless. Suggest increasing price and make the tubing an included item or an optional set and I will buy it again and again. Definitely not a downer on the product just the applicability by the design. Straw very limited and needs to be longer than the can to be truly effective.