Cool Box Compressor, 12/24 V, Polythene
From Amazon
Dometic CoolFreeze CDF 36 Portable Electric Compressor Coolbox/Freezer, 31 Litre, 12/24V for Car, Truck or Boat with Battery Monitor, Grey
Conrad Electronic
Dometic Group CoolFreeze CDF 36 Fridge/freezer Compressor 12 V, 24 V Grey 31 l