Premium Materials: The water filter cartridges are composed of advanced natural coconut shell activated carbon, ionic resin, premium PP cotton filter layer and precision filter, which can effectively reduce harmful pollutants in water. Upgrated Water Filter: water filter cartridge can effectively reduce chlorine, fluoride, scale in water, odor, heavy metals and other potential harmful pollutants, making the water more healthy and softer. Easy to Install: You can easily insert and remove the universal flter cartridge in the bottle. Safe and healthy: The universal flter cartridges are sustainable for 4-6 weeks, depending on the water quality. The filter retains the beneficial minerals in the water, which is beneficial to health. Compatible Model: This replacement pitcher water filters can be compatible with Brita MaxTra+, Replacement for Brita Jugs, Marella, Marella XL, Marella Cool, STYLE XL, ALUNA COOL, and Malella System, Brita Series of Jugs.