18x33x1 MERV 8 Standard Capacity NOVA Pleat - 8 PackNominal Size: 18x33x1 $161.44 SKU: NSS18A33A1A-8 Back $161.44 Quantity -+ Add to Cart Details 18x33x1 MERV 8 Standard Capacity NOVA Pleat - 8 Pack DetailsBackDetails18x33x1 MERV 8 Standard Capacity NOVA Pleat - 8 PackSee MoreSee Less