All Mermaid marine air conditioning products are constructed of quality components assembled on solid stainless steel bases. All models are available in 120VAC or 220 VAC 50/60 Hertz 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 the international customers, Mermaid is now an official CE approved company!