Primus Power Lighter Filling Adaptors allow you to use your threaded camping gas cartridge to refuel your lighter. 

Manufactured from high quality stainless steel with an integrated valve dispenser, these adaptors have an external diamond pattern to aid grip and an internal thread for attaching to gas cartridges. 

To fill a Power Lighter, screw the adaptor on to a Power Gas canister and place the dispensing end in to your lighters valve. Depressing the filler opens the value and the gas is injected in to your lighters reservoir.