Time to replace your old DE material? Fouling problems or simply poor quality DE that needs replaced, we can help. ICS can help you select the DE that will be right for your application. Blade Type and Cellular Type. Don’t know which one suits your needs, let us know more about your tower and your drift or environmental requirements and we will suggest the best solution for your application. Did your water quality change from the time you first installed the DE or do you suspect you were supplied with the wrong DE for your application? Contact our DE specialists for assistance in determining which DE is best for your application and for the best pricing and delivery.