The Aquamira Frontier Max is the only outdoor and tactical filter system"" certified to EPA and NSF/ANSI standards for 120 gallons of field use. Series IV Connectivity lets you customize the Max with any Series IV filter cartridge. UQC fittings allow you to connect the Max with the Geigerrig hydration engine and pressurize for on-the-go"" plug-and-play in-line filtration anywhere. The Aquamira Frontier Max is the most versatile inline filter available on the market today. The Aquamira Series IV RED Line filter included with the Max is certified by IAPMO to EPA standards for the removal of virus"" bacteria"" Cryptosporidium and Giardia"" for 120 gallons of use in the field. The MAX is certified lead-free (NSF/ANSI-372) and reduces bio toxins"" chlorine"" chemicals"" bad taste and odor from any water source. Aquamira Series IV connectivity allows you to customize the Max with any Series IV filter cartridge for use in emergencies"" international travel"" backcountry excursions or anywhere the water may be of questionable biological or chemical quality. The patented UQC connectors make it simple to plug into any hydration pack or inline system without a need to replace your current connectors. Plug in the patented Bite Me valve to convert your MAX into a straw filter. For a complete"" high-performance system combine the Aquamira Frontier Max with the award winning Geigerrig pressurized hydration engine for easy"" on-the-go"" plug-and-play in-line water filtration anywhere and anytime you need it.