Hi Teck - Biological Water Filtration System. This product is not just a filter. . We have two different types of filters within this system, one to improve the taste while removing odor, chlorine, heavy metals, and trace medical's with a second filter removing the biological containments.

This is great for a small home system as well.The carbon composite filter removes 80-90% of the chlorine; 97% of Lead & Mercury. The carbon composite filter also functions as a pre-filter reducing small particulate matter extending the life of the Biological Filter. The Sub-Micron Biological Filter provides for the removal of bacteria, cysts and protozoa from water. In independent testing conducted in accordance with EPA protocol the Sub-Micron Biological Filter removed over 99.99% of cysts and 99.9999% of the bacteria when tested under strict EPA protocol.The filters can come in a variety of lengths 5,10, 20 and a variety of widths (1"-6"+) These filter have the same removal capability as our 27 oz biological bottle but are designed to be used when pumping water out of rivers/pounds or placed in portable water systems that are supplying water for drinking, cooking, bathing, etc.