This American Filter Company AFC-PB4-1YRPK-2G-2Y-1PN-5PK is the full-year replacement filter set for the PureBlue H2O PB-TLRO4H50T water filtration system (no RO membrane). The 5-pack covers the standard yearly replacement schedule for a typical PureBlue installation, meaning a single purchase handles ongoing maintenance through a full calendar year of filtered drinking water.
The cartridges use USA-sourced premium coconut shell activated carbon blocks to reduce chlorine taste, odor, and a wide range of organic compounds — replacing the OEM PureBlue cartridges at significant cost savings. The carbon block format produces better contact time and longer-lasting filtration than the loose granular carbon used in cheaper imports.
For PureBlue H2O PB-TLRO4H50T system owners, this 5-pack is the cost-effective yearly maintenance subscription. Installation matches the OEM design — pull old cartridges, drop in new ones, restart system. American Filter Company manufactures all cartridges in the United States.
