Guess it depends where you are. I have no trouble finding those basic red enema bags in drugstores. Sometimes they're hidden among the douche products. Get the kind with the open top, not a water bottle kind. You can buy them on line, too, but from what I've seen they're much more expensive this way. If you can't find them at a regular drugstore, look in one of those shops that sell home nursing devices (pads, crutches, slings...).