(31) JBL Combi Filter Basket II CristalProfi 15 1901-2 Optimized top filtration basket with 100 th more prefiltration area. Filter material included.Remove the old filter basket and install the new one in its place.Optimizes the pre-filtration of CristalProfi e 401, 701, 901, 1501 and 1901 filters, which then become technically identical to the JBL...