This is a new, unopened, and unused item. Instant purchase is OK. eSpring Water Purifier II (Built-in Type) Replacement Cartridge eSpring Water Purifier II (Countertop Type) Replacement Cartridge This is a single cartridge that uses "compressed activated carbon filter + UV lamp" technology to inactivate 99.99% of 140 different impurities. *Please note that this is for eSpring II, not eSpring. Please be careful not to make a mistake. ★ If you replace the water purifier and filter once a year for 5000L over 10 years, it costs only 8.5 yen per liter! *If you were to use mineral water, it would be 500ml (100 yen) X 10,000 bottles ≫ 1,000,000 yen! It's more rational and eco-friendly than buying plastic bottles. Plus, it's easy to drink. This water purifier is safer and more economical. 【Please Note】 We inspect the item before shipping, but as we are not professionals, please refrain from purchasing if you are looking for a perfect product.