HP-04 Water Inc. HousePure Whole House Water FilterUser-friendly, factory-programmed systemIncludes service bypass valveHigh-grade coconut carbon for the effective reduction of chlorine and organic contaminants.4.5 lbs. of KDF55 (KDF 55 Medium was designed specifically for removing or reducing chlorine and water-soluble heavy metals. It controls scale, bacteria and algae, even in hot water.)System settings unaffected by power outages1 1/4” inlet/outlet high flow connectionsUp to 35 GPM flow rate2 Cubic feet coconut shell granular activated carbon4.5 lbs. KDF-55 packed in the bed with the carbon, allowing for higher flow rates.For wells and problem water situations a water report is required for manufacturer review prior to purchase of the ScaleStop, Soft and 01 through 04 systems.