DuPont DUPONT-WFHDC8001 Universal Heavy Duty House Carbon 2 Phase Cartridge Universal 10-inch cartridge fits all DuPont whole house water filter systems and most other brands of standard-size systems Improves taste and odor of water; effective in reducing chlorine, silt, rust, and sediment Filters 30,000 gallons at 5 gpm and lasts up to 6 months Extends the life of household appliances that use or process water