The compact bayonet cartridge adaptor enables the use of bayonet style gas cartridges in place of threaded EN417 type gas cartridges. It is compatible with Cadac’s Threaded Cartridge Regulator (343/ 343-QR) and 227g bayonet gas cartridges. Simply attach the adaptor to the regulator and then connect your bayonet cartridge to the other side. The adaptor also features an automatic closing function to prevent gas leakage. Perfect for lightweight and portable cooking during outdoor activities like hiking, fishing, and picnics.