This is the most popular option for small capacitycondensing unit. The best choice is for condensingunit starts from 2hp to 5hp;With thicker casing made of high qualitysteel with powder coating, the whole box withvery strong structure Fitted with hermetic compressors like EmersonCopeland, Danfoss, Tecumseh and Invotech;Fitted with axial fans with good quality, runningquietly.