Doulton British Berkefeld Gravity System
$119.95-$214.95 · Clean Air & Water

Ceramic filtration fired in England since 1826, and still the counter-thesis to reverse osmosis. Two stainless chambers, no power, no plumbing: chlorine and lead come out while the magnesium and calcium stay in. Fill the top, drink from the bottom. Some of the best gear in the Vault has no firmware at all.