| CPC F16L 33/30 (2013.01) [F25D 31/002 (2013.01)] | 10 Claims |

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1. An ice chest for containing ice, comprising:
a cold plate;
a plurality of beverage lines within the cold plate, each of the beverage lines including a first end; and
a plurality of fittings, each of the beverage-line first ends coupled to a respective one of the fittings, and each fitting comprising:
a first section having a plurality of first-section frustoconical sections, each of the first-section frustoconical sections having a first-section major outside diameter and a first-section minor outside diameter;
a second section having a plurality of second-section frustoconical sections, each of the second-section frustoconical sections having a second-section major outside diameter and a second-section minor outside diameter;
a transition section between the first and second sections, the transition section comprising a contour that continuously tapers from the first section to the second section at at least two different slopes and, adjacent to the second section, the transition section comprises an outside diameter less than the second-section major outside diameter; and
wherein the first-section major outside diameter is greater than the second-section major outside diameter.
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