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Feature

DOES NOT INCLUDE BOTTLE. Fits Klean Kanteen Classic (27 and 40 oz) bottles and Hydro Flask standard mouth bottles (21 oz). See fit guide in image gallery.
PERFECT FOR ON-THE-GO, ACTIVE, AND SUSTAINABLE LIFESTYLE. Never be without water or be forced to buy pricey and wasteful bottled water on-the-go ever again. Just refill your bottle at any municipal tap water source and sip away.
MADE IN THE USA, MADE USING FOOD GRADE MATERIALS AND BPA-FREE.
FILTERS UP TO 99.99% OF TAP WATER CONTAMINANTS. The Aquagear Tap Water Filter removes harmful contaminants that most other filters miss, including chlorine, fluoride, lead, mercury, heavy metals, industrial and agricultural runoff, and trace pharmaceuticals. ALL OF THESE have been found in tap water supplies across the United States.
GET CLEAN WATER, GIVE CLEAN WATER. For every straw cap filter we send you, we provide 6 months of clean water to someone in need in Uganda, Tanzania, or Cameroon.

Description

The original and only filter straw cap for Klean Kanteen and HydroFlask, the Aquagear Tap Water Filter Straw Cap is the key to on-the-go hydration, giving you access to safe, healthy, and great tasting water everywhere. Simply unthread the cap of your bottle and replace it with the straw cap and start enjoying clean water. This multi-patented product has been thoroughly tested in laboratories around the world for contaminant reduction, most recently by the Los Angeles County Agricultural Commissioner. These tests have proven that the Aquagear tap water filter is the industry leader when removing harmful contaminants commonly found in municipal tap water like chlorine (99.99%), lead (97.5%), fluoride (90%), mercury (99.6%), trihalomethanes (99.99%) DDT (98.8%), Chromium-6 (99.87%). These contaminants have all been linked to diseases and illnesses and DO NOT belong in the water you drink! Aquagear's patented filter meets and exceeds NSF Standards 42 and 53 as well as EPA/ANSI certification protocols.