COMPLETE SET for Whirlpool 1183054K (1183054) HEPA Filter PLASTIC FRAME and 4 Carbon Filters 8171434K 8171434 To Fit Whispure Air Purifier Models AP350 AP450 AP510 AP45030HO - by LifeSupplyUSA Measures approximately 15 3/4" x 18 7/8" x 2" Helps effectively filter airborne irritants such as smoke, pollen, dust, mold spores, pet dander and fabric fibers. Brand New Individully Sealed !!! PLASTIC FRAME !!! By LifeSupplyUSA