2 Micron Carbon Block Replacement Filter – 10” Cartridge 25-4520

The 2 Micron Carbon Block Replacement Filter (Part #25-4520) is engineered to provide advanced chemical filtration, effectively reducing a wide range of contaminants while improving the overall quality, taste, and safety of your water.

Designed for use with the Bio-Logic® Pure Water Pack™, this 10-inch carbon block cartridge serves as a critical filtration stage, targeting chemical impurities that sediment filters cannot remove. Its high-density carbon structure ensures superior adsorption and fine filtration performance down to 2 microns.

This filter is highly effective in reducing chlorine, chloramines, fluoride compounds, lead, heavy metals, volatile organic compounds (VOCs), and even pharmaceutical residues, making it an essential component for comprehensive water purification systems.

Key Features
2 micron filtration rating for enhanced contaminant removal
Carbon block technology for superior chemical adsorption
Reduces chlorine, chloramines, fluoride, lead, heavy metals, VOCs, and pharmaceuticals
10” standard cartridge size for easy replacement
Designed for Bio-Logic® Pure Water Pack™ systems
Applications
Residential drinking water systems
Under-sink filtration systems
UV water purification systems
Advanced filtration setups requiring chemical contaminant reduction
Compatibility
Bio-Logic® Pure Water Pack™ systems
Compatible with models: 25-4521A, 25-4522A, 25-4523A
Suitable for older systems including 25-4500A, 25-4505A, and 25-0898A

Replacement Recommendation

For optimal performance, replace the carbon block filter regularly based on water quality and system usage. Routine replacement ensures consistent contaminant reduction and protects downstream UV components.