?x?x.50" Flat Aluminum Foil Filter with Aluminum Frame (Between 251-300 sq. in.)HXAS050300 $42.92 SKU: HXAS050300 Back $42.92 Quantity -+ Add to Cart Details ?x?x.50" Flat Aluminum Foil Filter with Aluminum Frame (Between 251-300 sq. in.) DetailsBackDetails?x?x.50" Flat Aluminum Foil Filter with Aluminum Frame (Between 251-300 sq. in.)See MoreSee Less