?x?x.50" Pleated Aluminum Foil Filter with Aluminum Frame (Between 501-550 sq. in.)HKAS050550 $87.12 SKU: HKAS050550 Back $87.12 Quantity -+ Add to Cart Details ?x?x.50" Pleated Aluminum Foil Filter with Aluminum Frame (Between 501-550 sq. in.) DetailsBackDetails?x?x.50" Pleated Aluminum Foil Filter with Aluminum Frame (Between 501-550 sq. in.)See MoreSee Less