What is the life expectancy of a jockey box or jumper box system? 

A Coldbreak jockey box or jumper box should last you a lifetime with the proper care and cleaning. All the parts are made from stainless steel. What we typically see is the cooler will break down faster, if you don't take care of it. Cleaning is the most important part of using and taking care of a mobile draft system. Second would be storage. Keeping the lid cracked open so the cooler can breathe will keep mold from forming on the inside while not in use.
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