Brand new and never opened...we purchased this from a reputable dealer in south Florida for replacing a failed unit. We ended up selling the boat and have this sitting around. My loss is your gain! 12,000btu 115v Reverse Heat Included: Filter, digital thermostat, duct adapter, electrical/box, THIS DOES NOT HAVE THE SEAWATER KIT. You can source them from other sites. Asking 900$ + shipping.