$99.99HighiSpring FP25X25 High Capacity 20β x 2.5β Water Replacement Cartridges Fine Sediment Filter, 5 Micron, 25 Count (Pack of 1), White
$149.95High3M Aqua-Pure Under Sink Reverse Osmosis Replacement Membrane Cartridge AP5500RM, for use with AP-RO5500 System