As for Freemax M Pro 2 Resin Edition, you only need to slide the top cap and you don’t worry about the issues of loosening the top cap and potential leaking because Mesh Pro 2 is designed with three steel balls into the top cap to increase friction.
So how about M Pro 2 Metal Edition? M Pro 2 Tank 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.
For more details about Freemax M Pro 2 Sub Ohm Tank, please click here>> Freemax M Pro 2 Tank