Founded in 1945 in the Bronx, NY by two naval engineers, Sealed Unit Parts Co.,Inc (SUPCO) originated as a service company for refrigeration systems. These systems were “sealed”, in that, when service was needed, the repair was done invasively. The desire to overcome these traditional methods was the impetus to the development of the patented “Bullet” valve in the 1950’s.  See more Supco airconditioner and refrigeration products at – http://www.supco.com/

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