In a packaging system for packing cases with product, a product metering system is provided. The product metering system includes a first product lane along which a first product travels and a second product lane along which a second product travels. The second product is different from the first product. A first movable barrier has a first position that obstructs progress of the first product along the first product lane and a second position that allows progress of the first product along the first product lane past the first movable barrier. The first product lane and second product lane merge into a first common lane downstream of the first movable barrier, wherein when the first movable barrier is in the first position only the second product is metered to the first common lane.