If you're looking for a faucet filter, I suggest going with the Brita On Tap Faucet Filter System. This faucet filter has been tested for the reduction of over 53 contaminants (by the NSF/ ANSI Standard) such as chlorine, sediment, rust, and lead. The electronic LED filter replacement will turn red when the filter needs to be replaced.The life of this filter is approximately 100 gallons (or around 2 months) but can vary depending on usage and local water quality.