Quick twist design for easy filter replacement Effortlessly replace the expired filter with a new one with a simple twist. Delicious water at a fraction of the cost of bottled water Great-tasting water at a fraction of the cost and waste of bottled water. Effectively reduces chlorine, lead, bacteria and more By adopting the innovative activated carbon-fibre and hollow-fibre membrane, this X-Guard Ultra filter effectively reduces chlorine, lead, pesticides, microplastics and particles down to 0.1 micron. It also filters up to 99.99% of bacteria.