Watts Premier 560135 Water Pitcher Powered by HALO Pure Replacement Filters, Pack of 3 Package includes three filters for the Watts Premier 500450 water pitcher and dispenser^99-Gallon filter capacity. more then twice the capacity of standard pour through filters^3 Stage design with sediment layer, activated carbon micro filter layer and Halo pure layer to reduce contaminants and a trap sediment^WQA tested and Listed to ORD 0901 Microbiological Testing Protocol for pour through filters^NSF certified