A work vehicle includes a delivery system that distributes commodity from the source between a plurality of delivery runs. The delivery system includes at least one commodity manifold. The commodity manifold includes a first run structure with a first run passage, a second run with a second run passage, and a manifold regulator with a body that is rotatable about a rotation axis between a first position and a second position. The body at least partly defines a channel configured to receive and distribute the commodity. The channel has an inlet and an outlet. The outlet is in communication with the first run passage and disconnected from the second run passage in the first position. The outlet is in communication with the second run passage and disconnected from the first run passage in the second position.