Compatible Models: GLACIER FRESH cartridges are compatible with Brita pitcher and tank water filters (excluding Classic models). Examples: Glass Jug, Style, Style Eco, Liquelli, Marella, Aluna, Flow, etc. 【When using the Glass Jug, be sure to attach the included blue valve. Water will not filter without it.】 Compatible Cartridge Types: Compatible with Brita Maxtra+ and Maxtra Pro. 【This product is not a genuine Brita product, but it has been tested for compatibility and can be used with confidence.】 Water Filtration Performance: An advanced filtration system combining ultra-fine mesh, natural coconut shell activated carbon, and high-performance ion exchange resin efficiently removes 15 types of harmful substances, including chlorine, PFOS/PFOA, lead, copper, and pesticides. In tests conducted by a third-party organization, GLACIER FRESH cartridges were confirmed to remove 97.15% of PFOS and 96.8% of PFOA, providing safe and high-quality filtered water. Replacement目安: 150L total filtration volume, or approximately 4 weeks (when using about 5.3L per day). Filtered water removes chlorine, so it is recommended to use it within 24 hours. Ice made from filtered water should also be used quickly to maintain its clean and delicious state. For those using Brita Glass Jug: When using this product with a Brita Glass Jug, be sure to attach the included blue valve. The Glass Jug has a structure that separates the "water storage cup before filtration" and the "part where filtered water collects," so the filtered water will not flow down without the blue valve attached.