20x24x4 MERV 15 Mini-Pleat, Plastic Box Frame, Synthetic Media11-20-1870100-163987-0 $323.40 SKU: 11-20-1870100-163987-0 Back $323.40 Quantity -+ Add to Cart Details 20x24x4 MERV 15 Mini-Pleat, Plastic Box Frame, Synthetic Media DetailsBackDetails20x24x4 MERV 15 Mini-Pleat, Plastic Box Frame, Synthetic MediaSee MoreSee Less