Gas Cartridge Double skin safety valve Effective to -20 deg C Non- refillable Self-sealing safety valve Filled to the European standard EN417 Size: 190g Gosystem Butane / Propane Mix Gas 190g Reliable Cold-Weather Performance This premium gas mix of butane, propane, and iso-butane works effectively in low temperatures down to -10°C, making it ideal for camping stoves and outdoor cooking. Safe and Secure Design The internal leakage limiter ensures safety during use and transport, while the pierceable, one-use cartridge makes setup quick and convenient. Convenient and Compliant Non-refillable 190g tin cartridge filled to European standard EN417 for reliable performance every time.