Now charged with (Eco-Friendly) R-410A. America's over-the-road bestseller. As the second most powerful air conditioner in the Coleman-Mach line, the Mach 3 PLUS is one of the best RV air conditioning values available. The Mach 3 PLUS features a large evaporator and condenser coils with raised lance fins to help dissipate heat. 13,500 nominal BTUH cooling capacity; delivers 320 CFM (cubic feet per minute) airflow. Add the optional Heater Assembly and you'll have 5,600 BTUHs of heat for cooler outings. You can count on the Mach 3 PLUS for reliability too. All-copper tubing and gas-flux brazed joints ensure durability and long life for your RV air conditioner. A/C shroud includes condenser coil protection.