
So what’s the big difference between the metal edition and resin edition?
The Metal Edition is designed with Child Resistant Top Fill Design and ISO 8317 Child Resistant Certified. All you have to do is simply lift and slide the top cap and then fill the tank, super easy and convenient.
However, the Fireluke 3 Resin Edition is designed with three steel balls into the top cap to increase friction, and you can still fill the tank with a single hand but there’s little chance of loosening the top cap and potential leaking.