The CRCfilters EDH-25/45 is a liquid, gravity fed design that eliminates any electrical or moving parts. Condensed alcohol travels in an up-flow pattern through the 3A molecular sieve media providing longer residency times and full contact. This method achieves the highest efficiency results in water remediation. The vented collection tank will allow for use of a fluid pump when gravity is not an option. The CRCfilters EDH-25/45 is a design that truly out performs the most sophisticated and expensive equipment available at a fraction of the cost.