KT3020PF - Washable Pre-filtration Filter. For use with the Model 2000. Specially designed for use with any kind of water system with an unusually large amount of sediment that can clog up the water filter. This pre-filter helps remove the sediment thus enabling your filter to work more efficiently. Inside is a fine stainless steel filter and an FDA approved 4 micron filter that is easy to clean out. 1 lb each.  Item KT3020PF