The Frontier Series II GRN Line Filter keeps you safe from waterborne illness on the trail. Use this filter with a Frontier Flow bottle to easily refill from any river, stream, lake, or pond and carry up to 22 oz. with you as you enjoy the wilderness. Series II design delivers a perfect connection to any Series II filter bottle and includes barbed fittings on the casing to use inline with any ¼” hydration tube should the need arise.

This Frontier Series II GRN Line Filter and is certified to EPA and NSF/ANSI standards for the removal of bacteria, Cryptosporidium, Giardia, chlorine, chemicals, taste and odor. Combine with Aquamira Water Treatment for complete protection as recommended by the CDC.