Dometic engineers have spent 2 years completely redesigning and engineering one of the most popular RV air conditioners. It's cooler, stronger, quieter and lighter. The Dometic Commercial Grade Air Conditioner puts it all together. Heavy-duty motor support brackets, reinforced mounting screw holes and thick structural EPP foam housings all help create a sturdier, more reliable A/C Unit. The compressor and motor are mounted with rubber isolation pads and grommets to reduce vibration.