?x?x.50" Flat Aluminum Foil Filter with Aluminum Frame (Between 801-850 sq. in.)HXAS050850 $73.64 SKU: HXAS050850 Back $73.64 Quantity -+ Add to Cart Details ?x?x.50" Flat Aluminum Foil Filter with Aluminum Frame (Between 801-850 sq. in.) DetailsBackDetails?x?x.50" Flat Aluminum Foil Filter with Aluminum Frame (Between 801-850 sq. in.)See MoreSee Less