Heinz Mustard Packet, 0.5 oz. | 500/Case $20.13 Heinz Quantity: Heinz Mustard Packet, 0.5 oz. | 500/Case quantity Add to Cart Save SKU: e43fd776eaa8. Category: Heinz. Description Additional Information Description Heinz Mustard Packet, 0.5 oz. | 500/Case Heinz Heinz 342429 Additional information Manufacturer # Heinz Brand Name Heinz MPN 342429