The EcoPure ECODWF Dual Stage Water Filter Replacement Set includes 2 cartridges designed to fit the ECOP20 under sink model. Made of carbon fiber with a carbon block purification method, these filters have a capacity of 5000 gallons each. The set includes everything needed for installation and maintenance, with a sleek white design that fits seamlessly under the sink. The EcoPure brand ensures quality and reliability, making this filter replacement set a convenient and essential addition to any kitchen.