Deanna Troi 2 These cartridges are not well labeled. I'm surprised that the actual item doesn't show the model number, This one has a cryptic "JL1459" stamped on the bottom, and the one in my sink turned out to be a JL24.Spending ¥4500 yen on one of these every few months seems like a scam. It's a plastic tube of carbon...Make better products.