The FrontierPro™ attaches directly onto standard bottled water containers and water bladders with 28mm threads. The replaceable pre-filter eliminates larger debris and lengthens filter life. The Frontier Pro™ is antimicrobial and uses the “tortuous path” method of filtration and is designed to trap 99.9% of harmful giardia, cryptosporidium and other pathogens down to 2 microns in size.
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