BRITA pitcher water filter (filtered water capacity 1.75L) and 6 replacement cartridges. The water filter pitcher has a filter replacement indicator. Instruction manual is also included. I used this water filter pitcher because tap water in Chiba City was not drinkable directly. I am moving to an area with clean tap water and no longer need it, so I am selling it. According to the indicator, the cartridge needs to be replaced every 4 weeks, but I continued to use the same cartridge until the water tasted bad. Depending on how often you use it, but in my case, as a single person who only drinks water, I replaced it about once every six months. The cartridge replacement method is easy to understand because it is illustrated in the instruction manual and on the cartridge packaging. I have washed it with detergent before listing it, but I recommend washing it once before use. #BRITA #WaterFilterPitcher