A Sub-Zero refrigerator is engineered, built, and rigorously factory-tested to last for a minimum of twenty years of continuous daily household operation. This exceptional operational longevity is achieved through heavy-duty commercial-grade internal components, robust mechanical seals, and dual-compressor designs that reduce mechanical strain. While standard consumer refrigerators frequently require replacement after eight to twelve years, a well-maintained Sub-Zero unit often outlives multiple kitchen design renovation cycles, making its high initial purchase price a sound long-term investment.
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