?x?x.50" Flat Electrostatic Filter (Between 301-350 sq. in.)ECAS050350 $83.12 SKU: ECAS050350 Back $83.12 Quantity -+ Add to Cart Details ?x?x.50" Flat Electrostatic Filter (Between 301-350 sq. in.) DetailsBackDetails?x?x.50" Flat Electrostatic Filter (Between 301-350 sq. in.)See MoreSee Less