Filter Cartridge, Reduces Chlorine Taste and Odor, Scale, Micron Rating 0.5 micron, Flow Rate 1 gpm, Outside Diameter 3 in, Overall Height 25 in, Service Life 12, 000 gal, Filter Media Carbon, Agion, Polyphosphate, For Use With Mfr. No. MRS-350BL, Application Reverse Osmosis Systems, Cartridge Media Carbon, Compatible Mfr. Model Number MRS-350BL, Filter Design Specialty, Maximum Pressure 125 psi, Maximum Temperature 100 Degrees F, Series BW4400. This item has been restricted from sale in the following state (s): []