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Frontier Pro Series III GRN LINE Replacement Filter (67013)
Frontier Pro Series III GRN LINE Replacement Filter (67013) Packaging
Frontier Pro Series III GRN LINE Replacement Filter (67013) with man replacing filter
Frontier Pro Series III GRN LINE Replacement Filter (67013) technical specifications

Frontier Pro Series III GRN LINE Replacement Filter (67013)

$12.70 $14.99
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The Frontier Series III GRN Line Filter has been a favorite of backpackers, preppers, and survivalists for years. AND it is now a REPLACEABLE bacteria-grade filter (no need to throw a way the unit when the filter is exhausted - just replace the filter portion). This filter has minimal weight, quality design, and maximum connectivity.  The Frontier Pro offers a high-grade, small package defense against the common causes of waterborne illnesses - bacteria, cysts, giardia, and cryptosporidium.

This is a replacement filter for the following product:

PDF iconFrontier Filter Comparison - RED, GRN, BLU LINES


          • GRN Line Biological Protection from bacteria and protozoan cysts such as Cryptosporidium and Giardia to US EPA/NSF standards
          • Reduces chlorine and chemicals
          • Improves water taste, odor, and clarity
          • 50 gallon capacity
          • BPA free, chemical free, and iodine free
          • Miraguard™ Antimicrobial* Technology suppresses the growth of bacteria, algae, fungus, mold and mildew within the filter media
          • Ideal for outdoors and backcountry
          • Filter made in the USA


Frontier GRN Line filtration uses a unique 2 stage Electro-Positive Absorption Technology. Filtration starts with a replacable pre-filter disk removing larger particles.  The filter then uses a charged micro-glass fiber material to “pull” organisms as small as bacteria out of the filter water while maintaining high flow rates and low pressure drops. GRN Line filters have been thoroughly tested by independent laboratories and are proven to consistently remove protozoan cysts, and bacteria to ANSI/NSF – 53 and US EPA standards without the use of disinfecting chemicals such as chlorine, bromine, or iodine. The addition of sub-micron carbon particles into the filter media increases the absorptive capability required to reduce chlorine and harmful chemicals, bad tastes, and odors to ANSI/NSF – 42 standards. Frontier GRN Line filters provide superior biological protection, high flows, and long service life in a compact, lightweight, and easy-to-use cartridge

The patented design of the Frontier Pro filter system includes the unique Cap Strap™ cap system to retain the cap and protect the patented Bite Me™ valve from contamination along with providing a sure grip on the filter that fits comfortably in your hand. The filter casings are constructed of high impact FDA-grade ABS plastic to assure long life even in harsh environments. The UQC universal connectivity system allows connection to standard qwick connect fittings, the draw tube provided with the system, any ¼” ID tubing such as hydration drink tubes, and 28mm threaded bottles such as Platypus® and other light weight flexible bottles. The Frontier PRO GRN LINE is a powerful filter in a small, lightweight package - perfect for the outdoors and anywhere else.


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