Adya's 4-Layer Earth Filter contains activated carbon and zeolites.

Activated carbon is effective in the removal of bad tastes and odors, man-made chemicals and natural organic compounds.

Zeolites are micro-porous minerals with a pore size of less than 2 nanometers in diameter. The small pore size makes zeolites highly adsorbent. Particulates are drawn to the zeolites and adhere to the surface.

• Replace every 6 months (or 500 gallons) for best performance.
• Do not allow the filter to dry out.