Vacuum D/E is by far the best type of filtration with regard to particle removal. This system starts at a 3-5 micron removal and will be at ? 1 micron at the finish of the run. This system will give you and your bathers the ultimate protection against water born health issues. Our Filters are fitted with the Accupump? system to meet the most stringent Health codes as well as save you 20% to 40% of your energy operating costs over any other systems available.