A Multi-color ink-jet print cartridge includes an integrally shaped one-piece body with a reservoir portion including at least two ink chambers, and a manifold portion including at least two ink conduits, each ink conduit hydraulically connected to a corresponding one of the ink chambers through a port. An ink-jet printhead, includes at least two nozzle arrays, each of which arrays is hydraulically connected to a corresponding one of the ink conduits. A lid covers the reservoir portion of the body. Each of the ink conduits includes a channel portion in side to side relationship with the corresponding channel portion of the adjacent ink conduit. The channel portions have adjacent openings on one external wall of the body. Separate independent plugs are sealingly inserted into the adjacent openings.