Space Baron Trane Perfect Fit BAYFTFR21M Odor Ban Carbon Pleated Furnace / Air Conditioner Filters 21 x 27 x 5. Removes odors caused by pets or smoking. Case of 2 filters.Proper filtration is the first step to creating a Healthy Living Environment. Space Baron replacement filters are manufactured to provide the same filtration as the brand name filters with greater value. Filters are offered in a MERV 8 MERV 11 or Odor Ban filter rating.Actual Dimensions 20.625 x 26.25 x 4.9375 Manufacturer Quality Air FiltersSKU 2521150MPN SBPFR21MOBUnit Box of 2Actual Dimensions 21 x 27 x 5Quality Filters