KEY BENEFITS Carry extra fuel. Carry extra water. Custom-made for your needs. Small, light, easy to transport. Easy to fold and store when empty. Quick filling from any standard refueling nozzle. All materials are recyclable and reusable. Every time you get on your boat or yacht one of the very first things that comes to your mind is fuel. Whether you've planned a fun day filled with water sports activities, or you're heading out to the open ocean for some deep diving or fishing, or you are simply taking off on a long voyage, having reliable extra fuel is always beneficial. And that is why we created the Techno Tanks Marine Fuel Bladders.