High-Quality BRASS adapter WITH SWIVEL POL PROPANE BOTTLE ADAPTER This is UK BAYONET type adaptor FOR the AUSTRALIAN OR USA GAS BOTTLES 16CM LONG How many liters of LPG you can safetly put in the gas cylinder: LPG: KG to Litres (-20%) 3.9kg 7 Litres 6kg 10 Litres 13kg 24 Litres 19kg 35 Litres 47kg 90 Litres LPG: 1KG = ~2LitreS