They are very inexpensive at a big box store. You should always have a universal one near the kitchen (there are usually A/B labels, the clerk will explain). I also have one in my workroom. When I was spending a lot of time on the road, I kept one in the car. In all my travels, I have used it only once, but it saved a person! Now, my kids carry one in their cars. The recall had to do with the ones with the plastic release pieces. If you had metal rings, they are ok.