20x21.75x4 MERV 9 Standard Capacity PleatActual Size: 20x21.75x4 $66.76 SKU: KSCS20A21O4A Back $66.76 Quantity -+ Add to Cart Details 20x21.75x4 MERV 9 Standard Capacity Pleat DetailsBackDetails20x21.75x4 MERV 9 Standard Capacity PleatSee MoreSee Less