8430-5511 Coleman-Mach DUCT PLENUM BLACK

The 8430‑5511 Coleman‑Mach Duct Plenum (Black) is the OEM ducted ceiling plenum designed for use with Coleman‑Mach rooftop air conditioners and heat pumps. This factory‑built plenum creates a secure, efficient transition between the A/C unit and the RV’s duct system, ensuring proper airflow, quiet operation, and reliable sealing. Constructed to Coleman‑Mach specifications, it provides a precise fit and long‑lasting durability—ideal for new installations or replacing damaged or aging plenums.