LifeSupplyUSA Complete Set Whirlpool 1183051K Plastic Frame by Vacuum Savings Complete set of HEPA filter and 4 carbon pre filters Fits Whirlpool air purifier models AP150 and AP250 Measures approximately 11 1/8 x 16 x 1 7/8 !!! PLASTIC FRAME !!! Helps effectively filter airborne irritants such as smoke, pollen, dust, mold spores, pet dander and fabric fibers. Brand New Individually Sealed