Calor Gas 19kg Propane Refill. This Calor gas bottle is normally used for smaller blow heaters and other mid-sized appliances that use high volumes of gas and use a screw-in propane regulator. They're also commonly used by scout groups when away camping for longer periods of time, due to the economics of buying the gas in larger-sized bottles, which does work out cheaper per kilogram than smaller bottles.
The price is for a refill based on an exchange of an equivalent grouped empty Calor Gas Bottle if you wish to purchase an whole new bottle you will need to pay an additional £69.99 for the cylinder to hold the gas