Refrigerated Vehicles' insulated panel kits have been used on the Combos and Sprinters. These use three-element panels which fit around the interior of the load space to create a lightweight conversion which can increase payload potential. The kits create a box within a box to produce a temperature-efficient insulator which achieved a K-factor value of 0.3 when tested to ATP class C certification.
A strong laminate floor has been used with insulated wheel boxes to stop heat getting in and insulated glass fibre panels have been used on the original factory-fitted doors, eliminating the need to custom build new doors. Temperature control is provided by Hubbard 360L direct drive refrigeration systems for the Combos and Thermoking V250/10 Max systems for the Sprinters.