Provides all the benefits of a larger bottle filter in a package the size of a compact flashlight. Straw style filter attaches directly to water bottles, bladders, cups, hydration packs or directly from the water source. Attached cap keeps mouthpiece clean. Designed to fit in the palm of your hand. Flexible "Integrated Strap Grip" secures cap to filter when not in use and allows for easy cap removal. Bite Me valve can also be removed to use as hanging drip filter. Replacement pre-filters lengthen filter life. Filters up to 50 gallons with no wait time. Miraguard Antimicrobial Technology suppresses the growth of bacteria, algae, fungus, mold and mildew within the filter media. Miraguard does not protect users against food borne or disease causing bacteria, viruses, germs or other disease causing organisms. Weighs: 2 oz. (dry). Includes Frontier Pro, universal 28mm thread/tube adapter, UQC adapter, draw tube, (4) prefilters, storage pouch and operation instructions. Color will vary!