Economical and portable, this filtration system connects directly to your faucet to provide you with clean, fresh drinking water on demand. This is a flexible system that allows you to select from a range of cartridges to give you the filtration level you desire. The AS100 comes standard with an activated 1 micron carbon cartridge neutral white bpa free finish. You may upgrade your filter cartridge to a choice of Premium KDF carbon, fluoride reduction or Doulton ultra carbon cartridges. ^{**Additional costs involved in non standard options.}