The CV 470 cartridge is filled with 450 g of a butane/propane gas mixture in a ratio of 80/20. It is very stable and powerful with a long burn time. This cartridge is designed exclusively for the supply of Campingaz devices in the 270/470 line. Disposal note: Empty cartridges can be dropped off at the tin can collection point. Partially empty valve cartridges that are no longer needed can be disposed of through the special waste disposal service of the municipality. Piercing cartridges are filled with a powerful butane/propane gas mixture and are secured by either two brackets or a base, depending on the device's holding mechanism. They should only be disconnected from the device when they are completely empty.