MyBottle Filter uses 0.3 micron-pleated glass-fiber microfiltration to remove giardia and bacteria. 24-oz. bottle has integrated filter for clean drinking water anytime, anywhere without pumping. Flip-Top drinking spout. Treats up to 26 gallons of water. Replace the filter and upgrade to a Purifier with the Viru-Stat Replacement Kit (sold separately). Color: Red.