I know financial times are tough, and we are doing everything we can to keep our prices and selection of chemicals under control. Many people have gone to buying chemicals at big box stores and online lately. With the presumption that they are cheaper, some look like they are. But look at the concentration and size of it. Many companies have weakened the chemicals or downsized the container size. We carry multiple sizes, and most are the strongest concentration that is available. You use less and save money!