?x?x.50" Flat Aluminum Foil Filter with Aluminum Frame (Between 851-900 sq. in.)HXAS050900 $75.80 SKU: HXAS050900 Back $75.80 Quantity -+ Add to Cart Details ?x?x.50" Flat Aluminum Foil Filter with Aluminum Frame (Between 851-900 sq. in.) DetailsBackDetails?x?x.50" Flat Aluminum Foil Filter with Aluminum Frame (Between 851-900 sq. in.)See MoreSee Less