?x?x.50" Flat Aluminum Foil Filter with Aluminum Frame (Between 301-350 sq. in.)HXAS050350 $48.60 SKU: HXAS050350 Back $48.60 Quantity -+ Add to Cart Details ?x?x.50" Flat Aluminum Foil Filter with Aluminum Frame (Between 301-350 sq. in.) DetailsBackDetails?x?x.50" Flat Aluminum Foil Filter with Aluminum Frame (Between 301-350 sq. in.)See MoreSee Less