Ti02 and Carbon Filter, Filter Type Photocatalyst, Performance Rating Unrated, Actual Depth 13/16 in, Actual Height 17 13/16 in, Actual Width 13 3/8 in, Compatible Grainger Part Number 2HPB2, Compatible Manufacturer Model Number 2HPB2, Number of Filters 1, Media Material Coconut Shell, Titanium Dioxide, Filter Layer Type Carbon, Ti02 Filter, Nominal Depth 17 7/8 In., Nominal Height 7/8 In., Nominal Width 13 7/16 In., Filters Down To Not Rated