GLACIER FRESH Replacement Cartridge for Pitcher Water Filters, Compatible with Brita Maxtra Pro (BRITA MAXTRA PRO) Pure Performance Model, "6-Pack/Compatible Product" Compatible Models: GLACIER FRESH cartridges are compatible with Brita pitcher and tank water filters (excluding classic types). 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 Purification 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 purified water. Replacement目安: Total filtration capacity 150L, or approximately 4 weeks (when using about 5.3L per day). Since filtered water removes chlorine, it is recommended to use it within 24 hours. Similarly, ice made from filtered water should 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 the filtered water accumulates," so the filtered water will not flow down without the blue valve attached.