The Swift Green Filters Everpure Whole House Replacement Filter is a compatible Everpure replacement providing fresh, clean, and great tasting drinking water. This high-quality filter reduces - volatile organic compounds - chlorine taste and odour - cyst - sediment, dirt, and rust - lead - scale - bacteriostatic - cartridge: OCS (2). Swift Green Filters filters are made with activated carbon produced using a new technology that carbonizes dried coconut shells. Coconut carbon is superior to other sources of activated carbon. It has 50% more micro-pores for capturing contaminants. Change filter frequency: Every 4-6 months.