Uflex Velair Gen II 21,000 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. Easy to control with either the wall mounted control unit or via wifi through a smartphone app. Created for boats this marine air conditioner cr