HQRP 6-Pack Carbon Filter C for Claritin CAP529, CAP529-U, CAP529B-TU, CAP531, CAP531-U, CAP531B-TU Tower Air Purifier Coaster HQRP&reg; 6pcs Carbon Odor Air Purifiers Filter C plus HQRP&reg; Coaster; Enhanced with baking soda to absorb and eliminate household odors; Traps household chemicals and cigarette smoke; For use with See Side Panel, cannot be used independent of the main purifier filter; Dimension size: 6 x 9.25 inches; 2 weeks DOA replacement warranty!