Enjoy your indoor time. The FreshJet FJX Mechanical Air Distribution Box (ADB) is easy to use, simply twist a knob to set the temperature and fan speed to welcome refreshing air. State-of-the-art construction delivers superb front and back airflow allowing you to peacefully reset after a long day of exploration. We listened, and then we lowered the volume. RV air conditioning no longer must be loud to mean its cooling. The FreshJet FJX3000 series rooftop air conditioners have reduced noise over their predecessors by five decibels, meaning you can get a quiet and restful night’s sleep in cool comfort. This is significant when living in a mobile environment and will positively impact the quality time you spend in your RV. Don’t sacrifice another moment to unwelcomed noise. The FreshJet comes in a Mechanical 13,500 BTU option and a Mechanical 15,000 BTU option, both powerful enough to keep your coach cool even on the warmest of days. Our new custom blower system delivers 15 percent more airflow, pushing air further and faster so you cool down quicker than ever. We also developed a new Air Distribution Box that provides consistent front to back airflow. The Mechanical FreshJet air conditioner can be retrofitted to work with all existing Dometic and competitor air returns.