All Mermaid air conditioning products are constructed of quality components assembled on solid stainless steel bases. All marine air conditioning models are available in 120VAC, 220VAC 50 Hertz, or 208/230 50/60 Hertz (US) configurations. And all Mermaid air conditioners come with the security of a full Five Year Warranty (US and Canada Sales Only) on the total air package. And, for our international customers, Mermaid is now an official CE approved company!