This Camchiller insert fits all CamGo boxes except for the large handled box. The camchiller is designed to give your Cambro Cam Go Boxes an additional cold boost for longer cooling times, making it the ideal accessory for your food transport box. Built-in cut-outs support also cold transfer while protecting food from condensation. They easily adapt to all Cam GoBox GN1/1 except for the large handle box and are incredible simple to use. The chiller plate can be frozen overnight and slides easily onto the top rails of your insulated food box, extending cold holding times well beyond the four hours.