Room temperature regenerated deodorizing filters; 1 piece / 1 serving; Removes unpleasant odors and toluene; Fully water washable. Replacement estimate: Approx. 6 years; Dimensions: Width 2.2 x Length 7.1 inches (55 x 180 mm); *Compatible models: RAS-225NDRS, RAS-255NDRS, RAS-285NDRS, RAS-365NDRS, RAS-405NDRS, RAS-405NDRS, RAS-405NDRS, RAS-405NDRS, RDRS, RDRS, RAS-405NDRS, RAS-365NDRS, RDRS, RDRS, RAS-405NDRS, RDRS, RDRS, RAS-405NDRS, RAS-405NDRS, RDRS, RAS-405NDRS, RAS-405NDRS, RAS-365NDRS, RDRS, RDRS, RAS-405NDRS, RDRS, RDRS, DRS, RAS-225JDR, RAS-255JDR, RAS-285JDR, RAS-365JDR, RAS-405JDR, RAS-406JDR, RAS-506JDR, RAS-636JDR, RAS-716JDR, RAS-225UDR, RAS-25UDR, RUDR, RUDR, RUDR, RUDR, RUDR, RUDR, RUDR, RUDR, RUDR, RAS-25555UDR, RUDR, RUDR, RUDR, RUDR, RUDR, RUDR, RUDR, RAS-25555UDR, RUDR, RUDR, RUDR, RAS-255555UDR, RUDR, RDR, RUDR, RUDR, RAS-255UDR, RUDR, RAS-255UDR, RAS-2UDR, , RAS-285UDR, RAS-365UDR, RAS-405UDR, RAS-406UDR, RAS-506UDR, RAS-636UDR, RAS-2253DR, RAS-2553DR, RAS-2853DR, RAS-3653DR, RAS-4053DR, RAS-4063DR, RAS-5063DR, RAS-6363DR, RAS-7163DR, HAS-C22FR2, HAS-C252FR2, HAS-C282FR2, HAS-C322FR2, HAS-C402FR2, HAS-C502FR2, HAS-C2F2, HAS-C2F2, HAS-C2F2, HAS-C252F2, HAS-C2, HAS-C2, H2, HAS-C2F2F2F2F2, HAS-C2, HAS-C22F25252, HAS-C2, HAS-C252, HAS-C25252F2F2, HAS-C2F2F2, HAS-C2, HAS-C2F2, HAS-C2F2, HAS-C2F2 AS-C282F2, HAS-C322F2, HAS-C402F2, HAS-C502F2 / *Please confirm the compatible model before placing your order. Change time may vary depending on the time of use and location.