Ceiling assembly kit featuring FlashFreeze, that can be used ducted OR non-ducted, with the digital thermostat conveniently mounted by your bedside • FlashFreeze quickly cools the RV by allowing direct airflow from the upper unit to blow straight down into the RV living area • Easily installs in standard vent opening • Removable and washable air filter • Kit includes ceiling assembly, digital thermostat and digital relay (Compatible with both ACM135 and ACM150 units)