This package includes all the filters you'll need for up to two years after purchasing your Aquatru Under Sink system. It contains 4 pre-carbon filters (1-2), 2 VOC carbon filters with pH+ mineral boost (4), and 1 reverse osmosis filter (3), suitable for AquaTru Under Sink Alkaline. The pre-carbon filter needs to be replaced every six months and is responsible for removing bacteria, sediment, and other large particles. The activated carbon also eliminates any chlorine taste from the water. The reverse osmosis filter is designed to filter even the smallest harmful substances from the tap water. This filter only needs to be replaced once every two years. The VOC carbon filter with pH+ mineral boost removes the remaining impurities, adds healthy minerals, and alkalizes your drinking water. 

Time for replacement?
The AquaTru Under Sink system contains three filters that must be replaced at regular intervals to maintain performance. 

• (1-2) Pre-Carbon Filter: replace after 6 months
• (3) Reverse Osmosis Filter: replace after 2 years
• (4) VOC Carbon Filter: replace after 1 year

Helpful Hint: Write the date of filter installation with a permanent marker on the filter body, or use our helpful Filter Replacement Records chart, so you can easily identify when to replace the filters.