11x21x1 MERV 9 Standard Capacity PleatActual Size: 11x21x1 $19.76 SKU: KSCS11A21A1A Back $19.76 Quantity -+ Add to Cart Details 11x21x1 MERV 9 Standard Capacity Pleat DetailsBackDetails11x21x1 MERV 9 Standard Capacity PleatSee MoreSee Less