11x21x4 MERV 9 Standard Capacity PleatActual Size: 11x21x4 $33.96 SKU: KSCS11A21A4A Back $33.96 Quantity -+ Add to Cart Details 11x21x4 MERV 9 Standard Capacity Pleat DetailsBackDetails11x21x4 MERV 9 Standard Capacity PleatSee MoreSee Less
