Designed especially for non-ducted Coleman-Mach air conditioners. Omni-directional louvers are designed to direct air conditioned air downwards into the RV interior in any direction. When the omni-directional louvers are closed, conditioned air is directed forward and aft through the front and rear air flow dampers. Operation and Control knobs are located on the horizontal surface for easy access A low profile, Euro styling provides a contemporary look and feel while covering any existing ceiling imprints when replacing earlier ceiling assembly designs Pop-out retainer grilles for easy, tool-free access to the washable air filters Electric heat strip ready makes installation a breeze. Heat Kit KMS#3904551

 PROP 65 WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov