11/01/2021 · - Small Van Refrigeration Units HT-300T for 10~15m³ Refrigerated Van Box Size. KINGCLIMA Kingclima roof mounted van freezer unit HT-300T is a direct engine driven unit, DC12V/24V, 5S14 compressor, R404a refrigerant, temperature range from -18℃ to 25℃, large cooling capacity, cooling fast and low maintenance cost.