100% Brand new and high quality!
It is the most advanced, compact, ultralight personal water filter available. 
It contains no chemicals or iodinated resin, no batteries and no moving parts to break or wear out. 
It features a high flow rate.
Perfect for the ultralight backpacker, traveler, boy scout, hunter, and especially for emergency preparedness.
Drink directly from streams, or from a wide-mouth water bottle
Removes a minimum of 99.9999% of waterborne bacteria (>LOG 6 reduction)
Removes 99.9% of waterborne protozoan parasites (>LOG 3 reduction)
Reduces water turbidity.
Contains no chemicals. 
Will not allow water to flow when it reaches capacity.
It has no after-taste, since no chlorine, iodine or other chemicals are used. 
No waiting time. 
You can drink from it right away. 
There is no need to wait for water to drip or chemicals to act.
Bacteria removed include: Escherichia coli (“E. Coli”), Campylobacter, Vibrio cholerae (“Cholera”), Pseudomonas aeruginosa, Shigella, Salmonella. 
Protozoa removed include: Giardia lamblia (“Beaver Fever”), Cryptosporidium parvum (“Crypto”), Entamoeba histolytica.

Item Specification :

Original water: lake, river, brook etc.
Flow rate: 4000ml/min
Color: blue
Length: 18cm
Diameter: 3.5cm
Warm tips:
1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!
2. Please allow 1-3cm measuring deviation due to manual measurement.