QB C20028R/C20029C Cabin Air Filter Guard for Scion, Toyota Models (CARBON) Cabin Air Filter absorb up to 99.5 percent of allergens including dust and pollen. Filters most dangerous toxic gases and odors. For Best Performance and Efficiency It is recommended to replace the air filter every 12,000 to 15,000 miles, or per the owners manual. Compatible models : FRAM CF10139, Purolator C38188, Prime Guard PCF8188. OEM : 08974-00820 Toyota : Echo (00-06), RAV4 (01-05). Scion : tC (09-10), xA (03-07), xB (03-07) Filter Dimension: Length : 196 mm Width : 216 mm Height : 17 mm. Easy to install; Instruction Included