The Discoverer® Sub Zero Core Trays are available in all sizes, and in Series 1, 2, 3 and 4. They are designed to withstand prolonged freezing conditions of up to -50degC / -58degF and ideal to use in colder climates.
Typically we'd supply this to mining sites in colder countries in the Discoverer® Series 2 model, since it's best for international shipping due its nesting feature when trays are empty.
You are welcome to request another model of the Discoverer® Series in this specialised material. Minimum production run quantities will apply.