High-Quality  BRASS adapter
PROPANE BOTTLE ADAPTER
This is SPAIN PORTUGAL EURONOZZLE type adaptor FOR  the UK or the Netherlands
16CM LONG

How many liters of LPG you can safetly put in the gas cylinder:

LPG: KG to Litres (-20%)
3.9kg7 Litres
6kg10 Litres
13kg24 Litres
19kg35 Litres
47kg90 Litres

LPG: 1KG = ~2Litres