Coleman 8430A635 RV Air Conditioner ChillGrille Heat Ready Ceiling Assembly Lateral Ducted WhiteThe Coleman-Mach Deluxe ChillGrille Ceiling Assembly is a heat-ready air distribution box (ADB) designed for lateral ducting systems, directing cool or warm air to the sides of your RV. Its low-profile Euro-style design gives your interior a modern look while covering existing ceiling imprints. Featuring Coleman-Machs DirectFLOW louver system, you can open the louvers for direct airflow or close them to push air through the in-roof ducts. Pop-out grilles provide tool-free access to the washable air filters for easy maintenance. Mounted beneath your rooftop A/C, it secures with four bolts, sealing the unit while a return air filter ensures clean, fresh airflow for a more comfortable RV experience.Thermostat Required: Requires a compatible wall-mounted thermostat for operation (sold separately)POP-OUT Retainer Grilles: for easy, tool-free access to the w