Filter Media (Three Types of Filtration): Barrier Restriction, Adsorption, Absorption.

Kold Ster-il® System Provides Three Separate Methods of Filtration for your Health & Safety.

This unique Filtration System offers you and your family the following:

1. 0.50 micron bonded carbon block also containing a molecular sieve. NSF Approved Last Stage.
2. Molecular Absorption Disc Media designed to absorb/adsorb heavy metals, volatile organic chemicals, dissolved organic matter, phosphates while flowing 4 gallons per minute.
3. Fin-L-Filter 0.20 Micron bag filter (U.S. Patent). This second stage filter barrier restricts algae, Giarida Cysts, Cryptosproidium, fungus and E. coli bacteria.