The Berkey is a sports style bottle with a heavy-duty filter and a shelf life of about 50 years. It filters over 99.9% of bacteria and protozoa, plus over 97% of viruses. It improves the taste by removing particulates and chemicals. The medical grade polymer bottle is BPA free and won’t interfere with the taste or safety of the filtered water.
The filter is good for about 160 refills for raw, untreated water or 640 refills for municipal water. It’s flexible and doesn’t require any pumping. The filter attaches to the inner straw, and you squeeze to get water pressure. It’s not the most watertight seal, however, and it can leak if you aren’t careful.
Make sure you allow it to dry completely before storing to prolong the life of the filter. If you use it every day, this isn’t an issue.
Who it’s for: People worried about plastic bottles (BPA free)