... and same performance as BRITA pitcher filter cartridgeFeatures:Five different outlook design of cartridge with 4-step Filtrationcartridge design fit ... eliminates heavy metals such as lead, copper, mercury, cadmium, aluminum,metal, etc, retains beneficial substances such as calcium4) Filtration at base ... , refillable water bottle, petsHousehold ,office, hotel ,outdoors, travel, etc filter cartridge