NU-CALGON MICRO-CARBON #4 4617-24

The Micro-Carbon 4 utilizes a standard 12x40 mesh washed carbon, which is rated at a nominal 20 micron filter capability. It is designed to remove objectionable tastes and odors, such as those caused by chlorine, hydrogen sulfide (rotten egg), iron, etc. One unit will typically last for 5-6 months.