Katadyn Befree Replacement Cartridge Color:Blue Weights vary due to metal

Weights vary due to metal content

the best way to break free is with a box

a built-in facemask for quick concealment

Did we mention they'll keep you warm & dry no matter the weather

testing standard used by U

Katadyn Befree Replacement Cartridge Color:Blue Weights vary due to metalThis 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