Katadyn Befree Replacement Cartridge Color:Blue 4 lbs• Base: World Cup

4 lbs• Base: World Cup Plus• Cold Base Bonding• Hole Ski Tip• Precision Pairing System

Dual-textured grip

Ski Sidecut

Performs well at low temperatures

Katadyn Befree Replacement Cartridge Color:Blue 4 lbs• Base: World CupThis replacement Katadyn BeFree filter works with all BeFree filter systems, including bottles and gravity bags, to give you the freedom to drink anytime, anywhere by filtering water to EPA standards. Features Filters up to 2 liters of water per minute Easy to clean: simply shake or swish to remove debris 0. 1 micron microfilter is tested to protect against harmful organisms, removing protozoa (99. 99%) and bacteria (99. 9999%) to EPA standards Tested