The Frontier Series II RED Line Filter keeps you safe from waterborne illness in any circumstance. Use this filter with a Frontier Flow bottle to easily refill from any water source and carry up to 22 oz. 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 RED Line Filter and is certified to EPA and NSF/ANSI standards for the removal of virus, bacteria, Cryptosporidium, Giardia, chlorine, chemicals, taste and odor.