Festiva 220g Gas Canisters come in a handy 4 pack. Festiva gas is a 95 / 5 Butane / Propane mix for superior performance, and comes in a CRV Explosion Proof Safety Can.
The cartridge includes a safety device which will activate in a dangerous overpressure situation to prevent an explosion.
Each cylinder will provide approximately 1-1 1/2 hours burn time and features a bayonet style self sealing safety valve so that you can remove the cylinder from the appliance when not in use.
Festiva gas can be used on most other brands of gas appliance that require a Butane / Plus Propane mix. Performance will vary depending on the manufacturers requirements.