?x?x.50" Flat Electrostatic Filter (Between 551-600 sq. in.)ECAS050600 $101.00 SKU: ECAS050600 Back $101.00 Quantity -+ Add to Cart Details ?x?x.50" Flat Electrostatic Filter (Between 551-600 sq. in.) DetailsBackDetails?x?x.50" Flat Electrostatic Filter (Between 551-600 sq. in.)See MoreSee Less