Lifesaver Jerrycan Activated Carbon Tap 2pk (Blue, One Size) Improves water turbidity and the taste of water Each activated carbon filter will process 500 litres of water. Includes 2 x LIFESAVER activated carbon filter taps If the LIFESAVER jerrycan is used to process 3 litres of water a day, each activated carbon filter will last approximately 6 months before a replacement is required. Activated carbons filters are suitable for use with the LIFESAVER 10000UF and 20000UF jerrycan.