The Protector™ Red-D Ultra Submicron Depth Filtration Series, manufactured by QMP USA, uses a proprietary, patented, electro-adsorptive media technology and is capable of removing sub-micron pathogens and inorganic contaminants through electro-adhesion and ion exchange. The NSF-61-approved (and USP Class VI testing and endotoxin testing) media consists of coated micro-glass fibers produced using a wet-laid, non-woven manufacturing technology. The base media is laminated between layers of spun-bond to provide both strength and pleat support. Available in three versions with: natural silver-impregnated in the media; powdered activated carbon, and powdered activated carbon and natural silver. Benefits include finer particle retention and filtration capacity; higher loading capacity ; greater efficiency in salt, brackish and fresh water; wider pH operating window (4-9pH); very low pressure drop; lower cost of ownership and the capability of using one stand-alone filter system.