The commodity code you mentioned is a little different from those in our tariff. Please see your options;
Refrigerators, household type;
8418219100 Compression type. Capacity not exceeding 250 litres - 2.5% duty
8418219900 Compression type. Capacity exceeding 250 litres but not exceeding 340 litres - 1.9% duty
8418290000 Other - 2.2%
Vat is 20%