?x?x.50" Flat Electrostatic Filter (Between 000-050 sq. in.)ECAS050050 $54.64 SKU: ECAS050050 Back $54.64 Quantity -+ Add to Cart Details ?x?x.50" Flat Electrostatic Filter (Between 000-050 sq. in.) DetailsBackDetails?x?x.50" Flat Electrostatic Filter (Between 000-050 sq. in.)See MoreSee Less