The Pentair Tagels Top Mount Sand Filter with ClearPro Technology comes with new, exclusive, patented technology that dramatically improves water clarity by 60%. Traditional sand filters can only remove particles in the 50-100 micron range, but ClearPro Technology® removes particles up to five times smaller. Your pool will achieve 60% cleaner water than with other sand filters. And Tagelus remains blissfully simple, requiring less maintenance than either cartridge or D.E. filters. Just an occasional backwashing with a simple turn of a valve for the clearest water, year after year.