?x?x.50" Pleated Aluminum Foil Filter with Aluminum Frame (Between 401-450 sq. in.)HKAS050450 $80.80 SKU: HKAS050450 Back $80.80 Quantity -+ Add to Cart Details ?x?x.50" Pleated Aluminum Foil Filter with Aluminum Frame (Between 401-450 sq. in.) DetailsBackDetails?x?x.50" Pleated Aluminum Foil Filter with Aluminum Frame (Between 401-450 sq. in.)See MoreSee Less