?x?x.50" Flat Electrostatic Filter (Between 801-850 sq. in.)ECAS050850 $124.88 SKU: ECAS050850 Back $124.88 Quantity -+ Add to Cart Details ?x?x.50" Flat Electrostatic Filter (Between 801-850 sq. in.) DetailsBackDetails?x?x.50" Flat Electrostatic Filter (Between 801-850 sq. in.)See MoreSee Less