Thank you for viewing! The BRITA Aluna XL, with a capacity of 1.75L, is a pitcher-type water filter designed for ease of use, featuring a digital filter replacement indicator. It comes with one MAXTRA PRO Pure Performance filter. - Brand: BRITA - Model Name: Aluna XL - Capacity: 1.75L - Filter Replacement: Every 4 weeks - Features: Digital filter replacement indicator I am selling this because I accidentally purchased the wrong size. I opened the box once, but realized my mistake immediately and put it back. Please note that this item has been stored at home and the box has been opened once, so please refrain from purchasing if you are concerned.