The Liquatec SDF-25-2005 is a 5 micron sediment filter.The filters have graded density for higher dirt holding capacity.The Liquatec SDF-25-2005 water filter has a 2.5 Diameter coreless design and is an economical solution for many applications.The Liquatec SDF-25-2005 replacement filters are also used in applications such as Ice Machines, Film Processing, Beverage, Coffee, Analytical, Wineries,