17-777-1607 - Darlly Filter Cartridge, 35sqft, 2-1/8 Inchot, 2-1/8 Inchob, 4-15/16 Inch, 9-1/4 Inch, 3oz - 40353 - Replaces C-4335 , C-4335RA , FC-2385 , FC-2385-HB , FC-2385M , PRB35-IN , PRB35-IN-3 - 40353 - 17-777-1607