Polar King walk-in coolers feature a seamless fi berglass design and are constructed specifically for outdoor use. NSF-certified walk-in coolers incorporate closed-cell polyisocyanurate foam insulation encased in fiberglass, inside and out. This construction method provides quality structural strength, R-values and lifetime energy savings. Polar King’s warranty provides 25-year coverage for the foam insulation and 12-year coverage for the structure.


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