Uflex Velair Gen II 10,000 BTU Marine Air Conditioner This Velair Gen II is a self-contained marine air conditioner that utilizes existing technology for creating optimal climates. The twin rotary compressor features a brushless DC motor that is designed for marine environments. An inverter provides constant speed control while delivering cooling power. This model features a constant flow fan for consistent temperature holding. Easy to control with either the wall mounted control unit or via wif