Mainstream is an organization that uses cutting edge technology to create lines of hi-tech yet inexpensive products. Our latest is MainstreamMarine. MainstreamMarine products are designed to make your ship extremely clean while keeping the environment healthy. Mainstreamís past developments include advanced refrigeration systems for spacecraft, advanced tent air conditioning systems for U.S. troops overseas, and cooling systems for military vehicles along with a vast assortment of other advanced thermal control systems. All Mainstream products are manufactured entirely in the USA.