Questions about Korbell Refill foil for diaper pail 16L

Yes it is

The 16-litre refill cassettes fit into the Korbell nappy bin with a volume of 15 to 16 litres. Larger pails are not explicitly mentioned in the available information, so it is not certain whether the 16-litre cassettes also fit in significantly larger models. The refill cassettes are specially designed for the Korbell nappy pail with a volume of approx. 15-16 litres.