1 MAXTRA PRO Pure Performance filter filter capacity 150 L, brand BRITA. The BRITA MAXTRA PRO Pure Performance filter cartridge can be used for special water filter tanks, BRITA brand. With its help, you can filter approximately 150 l of tap water * (the amount depends on the hardness and quality of the water). we recommend changing the MAXTRA PRO Pure Performance cartridge every 4 weeks or 150 l of filtered water. After the recommended time has passed, remove the lid of the filter cup, carefully remove the funnel, then pull the cartridge firmly on both sides. How does the water filtration process actually work? Simple! Through a relatively quick process (in about 1 minute), but not superficial at all, thanks to the 4 basic elements of the MAXTRA PRO cassette. 1. The Ultra Mesh screen prevents dirt from entering the filter; 2. "Micro Carbon" particles generated by the coconut remove chlorine and other organic substances that can spoil the taste and smell of the drink; 3. The ion exchange resin retains metals and reduces scale deposits. 4. For the final filtration, water is passed through a finer sieve, which has four times better particle retention compared to the MAXTRA+ filter. * BRITA filters are designed exclusively for filtering tap water (note: if the water is regularly tested and declared potable) or for filtering water from private suppliers and certified as potable.