Chests contain extra-thick foam plastic insulation core. It takes 6 days for 85 lb of dry ice to sublimate to 5 lb in model 03721-02; 10 days for 150 lb in model 03721-00; and 15 days for 200 lb in model 03720-00.
Interior Dimensions: 13-1/3" L X 13-1/4" W X 12-5/8" H
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