?x?x.50" Flat Electrostatic Filter (Between 601-650 sq. in.)ECAS050650 $110.72 SKU: ECAS050650 Back $110.72 Quantity -+ Add to Cart Details ?x?x.50" Flat Electrostatic Filter (Between 601-650 sq. in.) DetailsBackDetails?x?x.50" Flat Electrostatic Filter (Between 601-650 sq. in.)See MoreSee Less