21x41x1 MERV 8 Standard Capacity NOVA Pleat - 4 PackNominal Size: 21x41x1 $113.04 SKU: NSS21A41A1A-4 Back $113.04 Quantity -+ Add to Cart Details 21x41x1 MERV 8 Standard Capacity NOVA Pleat - 4 Pack DetailsBackDetails21x41x1 MERV 8 Standard Capacity NOVA Pleat - 4 PackSee MoreSee Less