Lifegard Af-93-19 Chemical Filter Modules, Double Capacity

The Lifegard Chemical Filter Module can be used as a Biological Chamber when filled with the proper media that provides surface area for beneficial bacterial growth. The chamber can hold a variety of filter substances such as Zeolite Ion Exchange Resins or other biological media. No channeling; 100% of water passes through media. More than one module can be plumbed together for different media.