?x?x.50" Pleated Aluminum Foil Filter with Aluminum Frame (Between 351-400 sq. in.)HKAS050400 $77.52 SKU: HKAS050400 Back $77.52 Quantity -+ Add to Cart Details ?x?x.50" Pleated Aluminum Foil Filter with Aluminum Frame (Between 351-400 sq. in.) DetailsBackDetails?x?x.50" Pleated Aluminum Foil Filter with Aluminum Frame (Between 351-400 sq. in.)See MoreSee Less