The new MACH 10 low profile air conditioner, standing at just over 10" tall, delivers superior cooling performance that customers come to expect. Now charged with () R-410A refrigerant. Compressor rating of 13, 500 BTUH with 310 CFM (cubic feet per minute). The MACH 10 feature the same streamlined shape that enhance the airflow and cooling efficiency. Optional heater assembly can be added to provide 5, 600 BTUH of heat.