UN18A Thermo Chill Insulated Carton with Foam Shipper - 18" x 18" x 18" Outer Dimensions - 14" x 14" x 12.5" Inner Dimensions

Made of polyurethane foam which insulates better than expanded polyurethane (eps) and is bio stable meaning it will NOT contribute to ground or water contamination Superior insulation, durable, economical, recyclable and manufactured in the U.S.A Perfect for shipping breast milk, biotechnology, frozen foods, cheeses and many other perishable items Not recommended for use with loose ice