I wanted to repeat how pleased Pat and I are with the installation that your man David did here...
POU Carbon Filtration
Carbon filtration is a method that uses activated carbon to remove contaminants from water. Carbon filters are most effective at removing chlorine, volatile organic compounds, pesticides, herbicides and many other harmful chemicals but NOT effective at removing dissolved inorganic compounds.
Nimbus under the counter filters allow you to enjoy the benefits of drinking and cooking with filtered water.
Carbon filters are also used as pre-filter for reverse osmosis systems