NUMAK 105 is an antitheft fuel filler, which can be used for refuelling with pumps equipped with refuelling gun of ø 25mm until a Maximum of ø 32mm (European standards).

NUMAK 105 is built in such a way that, during refuelling, the fuel is introduced in the tank following a forced path, with small-sized slits to prevent pipes and probes for abusive fuel aspiration getting to the tank. 

NUMAK 105 is also equipped with a float; this is pushed by the fuel level which raises during refuelling. In this way, it obstructs the bottom baffles to further protect the tank against small-sized pipe introduction. 

NUMAK 105 is compatible with tanks of more than 90% vehicles; the original tank cover replacement is not always necessary.